I have a really good wobbler that I use when trolling in the local fjord. It has a nice unpredictable swim and does the occasional loop. The problem with the looping is that it puts a spin on the line. This can easily be avoided by putting a plate with a ball bearing swivel in front of it. I have a few commercial variants of these but I was bored yesterday so I made my own from a stainless steel plate. I guess it would serve as a simple "flasher" as well?
The masking for the paint was pretty crap.. That's something I have to practice more :)