Royal Ballot fix (for penalties and exploits)

Ballots have always been a potential problem due to having only 2 weight
while not being stackable. These shouldn't be exploitable. Let's make
the weight 50. Players should just be using these to vote.

This was the first response tactic I thought of to the institution of
actual penalties. "I'd just carry 100 royal ballots and never drop an
important item." This item has also been instrumental for Swap mules
avoiding risk. Let's just nip all that in the bud.