For subject F, 10 months (Abelmoschus moschatus, Boletus edulis) (2006)
wooden blocks, paint, ambrette seed oil, cepes oil

Ambrette seed contains beta-sitosterol, an androgen-like steroid; cepes contains androstenol, another steroid. Both are used to regulate hormones.

For subject C, 18 months (Salvia sclarea) (2006)
crayons, clary sage oil

Clary sage contains sclareol, an estrogen-like steroid, and is used to regulate hormones.