This is a Sanlaki F8 print. It was designed with a lot of feedback and iterations with the discord. If anyone would like to get one of these there is a promotion through the game:
http://tiny.cc/11Q2Paddle
5% off gets applied at checkout automatically with code: 11SANLAKI


if you want to print it out yourself Sanlaki has also pasted it to thingiverse https://www.thingiverse.com/thing:4623428

I'd strongly suggest using it with something likethese batteries https://www.amazon.com/gp/product/B07D6RDQ3S

these battery adapters https://www.amazon.com/gp/product/B08267BBJT

this velcro strap (you may need to cut it down)https://www.amazon.com/gp/product/B01F7MEDW6

or velcro strap from EU https://www.amazon.de/dp/B076Q7RYYK

also play without the battery lid (another -7g or so)

move the controller stap to sit like this for safety

and here is a close-up of how it the velcro sits

and as always, if you have any questions, reach out to me (discord is best)
via email: devs@forfunlabs.com

via discord chat: https://discord.com/invite/Mum2zTk (i'm carrotstien there)

via facebook chat: www.facebook.com/ElevenVR

instructions on how to select the appropriate preset:
Eleven Paddle Preset Installation Instructions

And here is a video of how you install the controller into the adapter:
Sanlaki Installation Video