You only need a paper clip on it and it will be MacGyver approved!
Joke aside, if you don't find a replacement for the tip get the Hoerner wing tips. Those really make difference. I recently upgraded to mine due to a wingtip in worse condition then yours, and I really like them.
1968 150H N5005 1969 Pitts S-1C 1970 150H Super Heavy
At least this time it was not my screw-up: I told the line guy he needed a softer head! And no, but I sure wish I had not left my roll of shiny white duct tape there in Clinton. So useful! This tape was brown, and sprayed white out of a rattle-can.
"The most beautiful thing on earth is the sky above it." -- Joanna Fink