You could always go for some coins as an easy application. Size depends on your budget however!
I like the look of your "purple heart" nice figure but you'll loose that detail with small cutoffs. I tried dyeing maple veneer by soaking it in transtint for a few hours, but only penetrated the surface and sanded mostly away. Been thinking of doing the same except with the stablizing technique (vacuum) in a chamber, but me thinks the alcohol will "boil" off under the vacuum?
That detail aside, I'm hoping the penetration would be 100%, heck it's only 1/40" thick maple.