Memo already has a voting feature. You could probably do something using NFTs too.
Yeah, you're right. Polls are great! I had using tokens as voting ballots in mind but on second thought it seems possible to use transaction outputs as ballots without using tokens :)
I'm just wondering, if eg. Catalonia could have its referendum done on blockchain. It would be super-cool to use existing citizen IDs to distrubute the ballots permisionlessly