A bow I made for SXS Hot Flame (a.k.a. Rodimus) figure, based a bit on the one he has in Animated (or maybe other multiverses, idk). It can be stored on the back, I designed it to look good with the back spoiler.

There are two types of bow arms - one has little hinges where you can put a wire string/ a thread - the thead can also help attach and position the bow, as the figure's hand has a weak grip, the other doesn't. There's also smooth pins or screw-like - I used the smooth ones and they work perfect, but bows' arms feels lose try to use the screws.

The handle is standard 5mm, so it should fit most tf's.