YES I've done these experiments myself as a horticulturalist~ Enjoy!!!!
Aloe vera: Thinning hair or just to grow faster
Olive Oil: Restores protien to the hair. ( Small amount because it's hard to rinse & strong smell)
Apple Cider vinager or Beer: Wash in COLD water to get shiny hair effect ( but smells funny)
Avacado: Acts like a conditioner, restoring protiens. ( Use 2 times a week)
Mayo: mix with avacado for conditioning AND rid of lice. Comb with a small toothed comb
Lemon Juice: turns hair blond
Henna: turns hair bluish-black, need special shampoo and can't mix with other dyes.
Honey and sugar: Rid of hair but might develope spider veins.