Art Supplies

New Art Supplies Worth Testing: Four Finds That Break the Mold

A revived century-old shadow gray, glitter Posca pens, clever Japanese highlighters, and a do-everything sketchbook put to the test.

Four art supplies including watercolor, glitter markers, a highlighter, and a sketchbook on a concrete surface

Introduction

There is something satisfying about testing art supplies that are genuinely new, whether that means recently invented or newly available after a long absence. This roundup covers four finds: a scientifically engineered shadow gray that took over a century to reach store shelves, glitter versions of a beloved acrylic marker, an over-engineered Japanese highlighter, and a sketchbook that claims to handle nearly every medium at once. Some of these earned instant favorites status. One, honestly, was a lesson in skepticism.

The Science of Shadow: Winsor & Newton Ostwald’s Gray

In the early 1900s, chemist and color scientist Wilhelm Ostwald converted colors into equations and formulas, and one of his most celebrated creations was a gray he believed was scientifically the best gray made for artists. His system never took off, his notes were largely lost to time, and the color went unavailable for over a hundred years. Winsor & Newton has now used those actual notes to recreate the exact color as a watercolor, making it available to modern artists for the first time.

What makes it special is how it handles shadow. It is only slightly transparent rather than fully opaque, with a hint of texture and grain inside the paint, because real-world shadows are not perfectly smooth. That means it can be mixed with any color to turn it into a believable shadow color, eliminating the usual should-it-be-brown, gray, blue, or black decision.

A watercolor wash of neutral gray drying on textured paper under soft daylight

Compared side by side with a plain palette gray on identical drawings, the difference is clear. The regular gray washes everything out and looks dull, while Ostwald’s Gray adds depth, warmth, and delicate, realistic shadows, and the overall colors look far more harmonized. It is not cheap relative to ordinary pans, but as a purpose-built shadow mixer it earns its place in a palette.

Glitter Posca Pens: Sparkle With Substance

Posca has offered metallic acrylic markers for a while, but these glitter versions are a different animal, and the Japanese-market editions are noticeably more charming than the Western packaging. First impression: these are seriously juicy. The ink flows generously, feeling like there is far more of it than a standard acrylic marker.

Glitter marker ink catching light in dense sparkles across a dark surface

Where a regular acrylic marker lays down a completely matte finish, the glitter version is doubly loaded: glitter mixed into a metallic formula, so the sparkle reads strongly even from a distance. The formula itself is classic Posca, which is to say top-notch, and the obvious use case is irresistible. Do a regular Posca drawing and layer in a few glittering metallic accents for a genuinely striking effect. Now that they are in Western markets, these are an easy recommendation.

Kokuyo Beetle Tip Markers: Highlighting, Reengineered

Japanese stationery has a reputation for being over-engineered in the best way, and the Beetle Tip markers from Kokuyo fit right in. The tip looks strange at first, almost freaky, but the design solves a real problem: with a standard highlighter, you highlight everything in one color, then pick up a second highlighter and work through the notes again with another color, doubling the effort.

Angled highlighter tips in contrasting colors resting beside handwritten notes

The Beetle Tip eliminates that second pass. As you work through your notes, you switch between colors by rotating the marker, never putting it down, and the paired colors are chosen as opposites so they contrast starkly against each other. It is a small, focused innovation, executed with typical Japanese precision, and it earns a full score for anyone who studies or annotates regularly.

The Grand Finale: Crescent Creative Rendr Sketchbook

The most ambitious item tested is a sketchbook from Crescent Creative, a brand less familiar than the big paper names. The claim is bold: the Rendr sketchbook is bleed-proof on both sides of the page and works with pencils, pens, alcohol markers, spray paint, acrylic paint, and ink. Watercolor is the one listed exception, though working lightly might stretch that rule.

That claim matters more than it sounds. Most artists keep an entire shelf of different papers because each medium demands its own. One sketchbook that handles nearly everything would collapse that collection into a single purchase, which is exactly why this needed a proper stress test rather than a swatch demo.

So it got a real mixed-media piece: marker layers, acrylic paint, ink, and pencil, all worked hard on one page. The result held up remarkably. Checking the reverse side, not a single color bled through, which is genuinely impressive across that many media. There were small compromises, as expected: hard pencil work left slight indents, and masking tape ripped a little of the page surface, but those are standard sketchbook behaviors. At around $23 it is not the cheapest option, yet for beginners or anyone tired of buying a different sketchbook per medium, consolidating into one book can actually save money. It is not perfect, but it is very, very good.

Open mixed-media sketchbook page holding marker and paint with a clean reverse side

Overall Buying Advice

If you paint, Ostwald’s Gray is the standout of the group, a rare case of thoughtful engineering solving a real color-mixing problem. Stationery and marker fans should look at the Beetle Tip highlighters and glitter Posca pens, both small purchases with immediate everyday payoff. The Rendr sketchbook makes the most sense for beginners or multi-media sketchers who want one book instead of five. One caution from testing elsewhere in this category: water-based solid pastels that blend like oil pastels but at a premium price did not prove their value, so pay attention to whether a novelty medium actually does something your existing supplies cannot.

Conclusion

Four genuinely interesting supplies, two clear standouts. The Ostwald’s Gray watercolor and the Crescent Creative Rendr sketchbook earned real enthusiasm, while the glitter Posca pens and Beetle Tip markers fill their niches almost as convincingly. Buy for your actual workflow, not for the novelty, and these picks make that easy.

Further reading

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