Spinner Handle Adapter for Twist Lock

I made the Pokeball Spinner for my 3 year old, who loved it but couldn't use it. So I made this handle, then modified it. It works with the twist-lock style caps (my favorite so far). Simply attach one cap and the handle to the spinner, the other cap to the bottom of the handle. I printed the Pokeball version, which is not as refined and required supports (even with supports, the top cap did not come out clearly as the pokeball design). I am hoping not to need supports on the newer, more un