You don't want that tattoo on your bicep. Draw something on your bicep and flex. Draw that concept on a piece of paper and put it over where you want on your bicep and flex. I think a piece like that would look better on your lower back a la "tramp stamp" because you can expand upwards/cover it up. That's if you want that particular piece.

I have no problems with fandom for particular genres or muppets in general. I wouldn't get anything like that.

You should draw your own concepts. Just draw a lot of muppet concept tattoos. That's the stuff that really brings out the personal shit. Draw a muppet tattoo when you are at the lowest of lows. Otherwise, it just looks like you're just a fan of the muppet movies, and I'd hate to say "oh i love the [whatever]" to someone because that's really all it is. Just to reiterate one more time, if that's your thing then go full steam, but wanting is not the same as really thinking it through if you want to put something meaningful on you.