Some time ago we had a discussion on Feedback. This also included various Resonator, Karplus-Strong and Combfilter concepts.
E.g. one of my posts includes some discussion and Youtube video examples on resonator based hand drum sounds.
- A Karplus Strong Tabla emulation (which was more or less the inspiration for Seaside Modular Tala ).
- A multiband filterbank feed back resonator Hand Drum patch.
I guess not in that thread/post, but pinging Resonant fiters (basically also feedback based resonators), with various spectra/impulses can also be used for drum sounds.
I guess even the humble pitch sweep might come a long way. Basically the principles as implemented in Befaco Kickall
Several Mutable Instruments module emulations also offer drum/resonator models. Including Modal synthesis.
I guess these concepts could all be used to emulate Bongos.