As inspiration for the digits, I used Sport Imperial's logo (the body which the fencing club is a member of), and wrote "BUCS" on one hand and "ICFC" (Imperial College Fencing Club) on the other one. It was a bit messy, especially any letter that is round(-ish) was hard to write nicely. It didn't help that my white polish was running out.
For the thumbs, I painted the outline of a small fencer. For someone who doesn't do the sport, it turned out to be a bit unclear what it was, but fencers really appreciated it. At the hotel the night before the competition, I attempted to do the same design on one of the other girls, but we could only find a plastic spoon to use as a tool, so it got a little messy. One of hers definitely has fencing thighs though!