Well I can only speak with certainty about my own collection, as Him Indoors has many items still packed away in boxes since we moved house.

I own 3 guitars; 1 Takemine electro acoustic, 1 baby Tanglewood, one Ozark single cone resonator
4 banjos; Wildwood Troubadour, Gold Tone White Lady, Ozark travel banjo anda Keech banjulele
7 Appalachian dulcimers; one Ledford, one Yocky, one McSpadden ginger, one Hora, 2 made by my OH and a Ken Bloom bowed dulcimer
3 ukes; cheap laminate soprano, koa laminate concert, mahogany tenor
1 entry level fiddle
1 Charlie Hind double ocarina
5 recorders (all sizes from sopranino to bass)
Keyless flute
Thumb piano
Several percussion items (shaky eggs, cabasa, dan moi mouth harps, tibetan finger cymbals)
And me own big gob.....