I think the best thing to do would be to come up with something really strange, but similar to another thing, and make your own stuff up. For example, I have recently been working on (and please everyone,
don't steal this idea, though feel free to pm me if you want to discuss/contribute to this) a routine featuring a toothbrush appearing, changing colour, vanishing etc. This is very similar to pen/cigarette magic in terms of sleights and stuff. Really, you are just limited by your imagination. Instead of using coins, why not use nuts? Small oranges in place of billiard balls. You get the idea, just come up with unusual and interesting ideas, something that will make the audience jump back and say 'wow, didn't see that coming' when you find it in their ear. I'll leave the rest to your imagination, hope I've helped
EDIT: Idea! There are quite a few resources on Tictac magic available for purchasing, these might be what you're looking for. Also, Chris Lafferty's Freezer Burn (available from
this little godsend) has some interesting ideas on using ice in magic. You might want to look into that.