Pack of 8 Different Color Liquid Chalk Markers.

This set has 8 different bright colors that are easy to use you start it out like a paint marker pressing down on it and shaking. you can use these on mirrors or car windows or acrylics signs, chalkboards, whiteboards, blackboards, LED writing boards, glass, and plastics. They wash off easy if you use them on a slippery surface you just wipe it off with a wet rag and your down. You can leave what you draw on the object as long as you want and it will still come off.  I defiantly think these are fun and easy to use and kids would love them and they are great for making signs. Another fun idea for these is to draw on a family members car for a birthday or some other celebration. These things are wonderful and anyone can use them they are safe. I highly recommend them The only thing I wish they would change is the size of the tip I think if it was smaller you would have better control but they are wonderful

http://www.amazon.com/gp/product/B00QPBVHAA/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1