Washable markers in the Bathtub. They wash right off.

My First Crayola Bathtub Markers, 4 Pack

Scribble Scrubbie Pets Purple Tub Playset, Crayola.com

Crayola Taste Beauty Bathtub Markers, Washable Markers

Crayola Washable Marker Set-10 Colors

Crayola® Bathtub Crayons, 10 ct - Pay Less Super Markets

Crayola Color WipeOff Whiteboard Markers, 8pcs.

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Crayola Taste Beauty Bathtub Markers, Washable Markers for Baths in Green, Red, Blue, Purple, and Orange

Cra-Z-Art Washable Markers, Broad Bullet Tip, 64 Assorted Colors

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Crayola Taste Beauty Bathtub Markers, Washable Markers for Baths in Green, Red, Blue, Purple, and Orange