It's a cool little instrument, for sure. I bought some cheap set of pickups from Amazon. Pickup itself has a sticker that you press on to whatever you want to amplify and has a little breakaway cable for your 1/4''.
And I tried it with my ebow after I finished this and got some cool results as well. Gonna do some more experimenting with that, too. Haha.
Here's a link to what I bought:
https://www.amazon.com/gp/product/B07795XHLH/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
Would these possibly work? https://www.amazon.com/TraderPlus-Contact-Microphone-Mandolin-Ukulele/dp/B07795XHLH
I saw some chatter on the discord about these and they are cheap enough so I figured I'd give it a try. WOW is all I can say. The amount of stuff you can hear inside the lock is amazing, and drowning out background noise helps too.
Microphone and Amplifier
Pick and gut video No talking until I take off the headphones ;-)