To create a write-on style tap handle you have three options:
We recommend only using washable crayon for marking. It may not have the finest point but it won't smudge easily and will wipe off with a damp washcloth.
Using a recommended washable crayon in a blank area of the tap. Wipes away nice and clean with a damp wash cloth.
Wet erase markers, dry erase markers don't wipe clean. You may get a ghost or stain effect, so they are not recommended. (If you accidentally use regular dry erase markers or wet erase markers...to clean, wipe gently with some Isopropyl alcohol, rinse and dry.)
Dry Erase Crayons also wipe off cleanly and they'll stand out brighter on dark background.