As if I needed another hobby...
Had this (property owner in outback NW NSW where I got it calls it hakea) in the shed for years, and just got around to splitting some to use as tops and legs for little bush stools:
Have a bit of mulga, bullock bush/inland rosewood and some sheoak too; they'd probably all make lovely knife handles, so there's another skill/hobby to try and master...
Next time I go there, there's a dense mulga forest with a lot of tall and straight (for mulga) trees; I'll cut some for bows. Might be a bit interesting, given that the stuff has a density of about 1050kg/m3 dry, and can fit 200 growth rings into 6 inches...