Here is a version of the working wankel cufflink design printed in a pair with a small connector that can be easily removed. This should help cut down on the cost of the cufflink pairs.
Update: sorry I can't offer these for sale right now because the tolerances on the moving components are too tight so it doesn't move right now I will be remaking the cufflinks and trying again soon. Thanks for your patience.
2.76 w x
2.14 d x
1.087 w x
0.843 d x