Did you ever want to feel what it is like to have an extra finger?
Print this little dr octopus inspired wearable, assamble it and go!

Please slice the base as it does not lay optimal in the printbed without slicing. Also print the segments multiple times so that you have around 5 single segments in the end. The Little Clips on the side of each Segment Can be ignored as i miscalculated their function ——> They are useless you Can cut them off

This thing contracs via a 9g Micro servo and i suggest you use emg Sensors or flex sensors to Controll it.
Plug it all in an arduino, strap it on your arm (with a Power Bank) and it is ready!
I used M5 screws, fishing line and some rubber lace to complete This.
The construction is pretty straight forward:
Screw everything together, glue the servo in Place, run the fishingline through the holes in the Segments hook it all up to the an arduino or anything that controlls the servo how you Like it. As already said i suggest you use an EMG Sensor as it might feel the Most Natural to controll or a flex sensor (it is cheaper and needs less prework) and put it on your middle Finger, it may Not feel as natural as the emg sensor.

You can add rubber or something onto the segments to increase grip or download the new addons, you can make the finger look like a dragonstail or just download the proper endsegment!

If you have and problem with this thing feel free to contact me or ask me in the comments!
Check out my other things too!