A cheap battery-driven theremin I once bought on ebay, send via 4I/O into the AE modular.
The Signal went thru Wasp filter and Wavefolder, LoFi-Delay and MultiFX Shimmer, all of them controlled by different LFOs. So you mainly hear the FX section of the AE modular.
The result was slightly paulstretched (for a pad feeling) and mixed with the original with some additional VST FX, mostly Valhalla FreqEcho and OrilRiver Reverb.