I put a Tiesco pickup that looked like a P-90 but was built like a Jazzmaster pickuo into the bridge position of a Tiesco guitar that only has a neck pickup. It didn't sound half-bad!
Next was when I hacked a Gibson humbucker into a yard-sale hollowbody. A bit thin, but also not bad,
After that was a used JB (JBJ) into yet another '60s Tiesco hollowbody bought at a yard sale.
Those were all in the '80s. The first pickup I actually purchased new to install into a guitar was a Super Distortion, maybe 10 years ago. That was then followed by a dozen more as I finally understood how much difference there could be between humbuckers in the same guitar. I still want to try a few more!