I have been using the Tim Holtz alcohol inks and I love them. They work on non-porous surfaces (like dominos) and they are awesome!!! little tip-get the little tim holtz tool but then buy sheets of plain white felt and cut your own squares. It only takes a few drops of each ink and then you just dab it all over until you have blended it into something you like. I will be posting some pics soon. You can use it on tins, glass, acrylic, transparency, or whatever you can think up!