Derma colour by Kryolan. I believe it was desinged for people with sking defects, birthmarks, and Tattoos. They have alot of different colours so you can mix up a colours for canceling out the colour of the tattoo, and then make the perfect colour to blend in with your skin. You can get different powders and sprays that make it waterproof as well i think. its not the cheapest though, but I think it would last you a long time. Google it to get a bit more info, but here is a link to a site that has "how to's" (midway down it covers tattoos" and a link for the different products you can by. The other link is a thread about it, and about half way down it has a few before and after photos. Alot of people use it to cover tattos. Good luck!

www.backstageshop.co.uk/acatal...ur.html

www.bluelight.ru/vb/showthread.php

Ben Nye also has a creme tattoo-cover kit (see page 13: www.bennye.com/image/2007...Catalog.pdf ). In any case, it's going to need to be a creme product, as liquid will not give you the coverage you'll need.