Bottlecap Suggestions

I have 500 or so bottle caps saved from evey beer I have had in my new place. What should I do with them? I wanted to make something but I have no idea what I could make. Anybody have any suggestions?

 

I have seen some interesting tabletops and bar tops made from them...

 

Fridge magnets.

 

Belt Buckle???

 

I vote for a bar top. You can use the different colors to make some cool designs. Just set them in clear eopxy or put a piece of glass over all of it.

Or just do this...

 

I glue magnets on the inside and put them on my kegerator. Magnets can be purchased at walmart at something like $6 for 100. Then superglue them to the inside. Put them on a fridge you don't necessarily care for because they can scratch the paint if you aren't moderately careful.