The windows are calling me. Have you tried Kitpas window crayons

Kitpas Window Art Crayons - Set of 12 Sticks

NO MESS! Kitpas crayons are water-soluble, creative art sticks which can be used on multiple surfaces including Windows and mirrors, and wipe off

Kitpas Crayon Large 12 Colours - Bright, Bold Crayons for Almost any Surface including Paper, Glass and Mirrors

There's always something to do :) – Tuli Kids

Kitpas - Art Crayons with a little twist (FAQ) — Oskar's Wooden Ark

I don't get mad anymore when I get scribbled🙌✨, Gallery posted by ちいママ

I Tested the 8 Best Crayon Brands, & The Winner Shocked Us!

I don't get mad anymore when I get scribbled🙌✨, Gallery posted by ちいママ

Kitpas Crayon Medium 12 Colours - Bright, Bold Crayons for Almost any Surface including Paper, Glass and Mirrors : Everything Else

Kitpas - Art Crayons with a little twist (FAQ) — Oskar's Wooden Ark

Easy There Window Licker You Forgot Your Helmet and Crayons, Rustic Sign, Farmhouse Sign, Home Decore

Crayola Washable Window Crayons 5 Pack

Kitpas Rice Bran Wax Art Crayons are Paper-wrapped for comfort and durability! The main ingredient has been changed to rice wax and renewed! Kitpas art products are thoughtful, safe, and playful for children and adults of all ages! Whether they are used for kids’ play time, store display, or for your creative projects, Kitpas offers limitless possibilities.

Rice Bran Wax Crayons, 12 Colors

Kitpas Crayon Large 12 Colours - Bright, Bold Crayons for Almost any Surface including Paper, Glass and Mirrors : Toys & Games