bottle caps jump ring///*.bracelets.and necklaces?

[readyfortofade.livejournal.com]

I've been thinking about turning a bottle cap into a necklace..which size jump ring should i get?? and how could i make the bottle cap less sharp so i dont get cut when i wear it?

also..i've been thinking about making my own bracelets,necklaces with beads and everything anything i should know about making stuff like that?