/diy/ - Do It Yourself

Can anyone recommend a "decent" compact/keychain-sized multitool? I fully understand that they do not perform as well as real, proper tools. I even understand that they do not perform as well as conventional full-sized multitools (like a Leatherman, the Swiss Army Knife, and their countless imitations).

I only have the following criteria:
>needs to be able to cut at least soft/thin plastic
>able to open bottles
>reasonably priced
>can comfortably hang off a keychain
>as few moving parts as possible

Things I do not strongly care for (ie. if it doesn't have these features, I wouldn't be sad about it):
>TSA approval
>screwdrivers
>pliers
>wrenches