I’ve been playing guitar for almost 30 years, and spent a good deal of it trying to make my guitar not sound like a guitar. Did the prepared stuff for a long time, with a lot of looping, volume pedal work, putting through all sorts of pedals. The standouts for me have been the Moog Ring Modulator and the EHX Super Ego. They transform it into something totally different.
A few years ago when I got into eurorack, that has been the most un-guitar thing I’ve done, as I’ve not been playing guitar as much. Ha. I’ve really been trying to combine guitar with euro, but I’ve not been totally stoked by it, probably because I’m liking the sounds I’m getting from the synths more than the guitar itself. I have been playing lap steel and I’m finding that it blends with the euro stuff better and is easier to do prepared things because its sitting upright and there’s no frets. Also timbrally, I really dig the way it blends.
With Euro I have had some nice results with Morphagene and Mimeophone. I also like doing the thing where you run the guitar through a preamp with a gate trigger, like the Doepfer A-119, and depending on its threshold, it fires a gate when you play. You can use that information for so many things, but I like using it to clock a sample and hold going into a quantizer, then you can get ramdon notes to play in a scale along with waht you play on the guitar, .