ThinkGeek is now selling “Wire Glue,” a conductive adhesive made with micro-carbons. They’re selling a .3 oz bottle for $4. I like what BotJunkie said about it:
It looks like a neat product, and I’m sure it works well, but if you’re thinking of getting this rather than learning how to solder… You should just learn how to solder. It’s cheap, it’s fun, and you get to melt metal and make stuff. Give it a shot, and then after you burn yourself, you can go ahead and buy the glue without feeling guilty.