For my Delta Gamma 9 I wanted a ping-pong ball for the nose, but couldn't find any in the shops except by buying an entire ping-pong set. What I did find was a pack of six training golf balls, pretty much the same as ping-pong balls with a lot of holes. One of them duly became Delta Gamma 9's nose. That left five more to play with.
The holes were about the right size to accept thin dowelling. One hole, enlarged, became large enough to accept a 13mm motor. With one end angled, the dowels were pushed in far enough to touch an empty 13mm motor, then secured in place with epoxy; they then act to keep a live motor in line. The result is the Holey Sphere. It goes up nicely on an A10-3T.
Don't just stand there, get one up!