Some tools don't get the love and attention they deserve. Audio Damage's Ronin is one of those tools. Ronin is no longer available for purchase, but you can still take a peek at it here.
While Ronin IS capable of much MUCH more than the 18 presets in this bank, the concentration here is on ...unusual... delay application.
'Number Stations for Ronin' by blortblort is free...
Please download these and have a go... please put a limiter on your track when you test them. I eliminated all runaway feedback loops, but there ARE still a couple of presets that may get "pointy" depending on your input signals, etc. Better safe than sorry.