I did this same fix months ago but used part of a large paper clip and gorilla gel glue. Then my kids used it…it worked for a while but now the thumbstick started jiggling and when I took it apart it was broken again. Rather the gorilla glue fails eventually at the joint where the two broken plastic parts join. The broken off part was still solidly glued to the thumbstick but not at all to the joystick control box. I am just going to get the soldering iron out and replace the whole thing. Part already ordered for less than $1.