Aaaaahahaha this has me giggling!! And it's totally hand washing safe ;-)
I used acrylic paint to lay down the basic design of the prints in the right colors. Then I went over the prints with a gel top coat, sprinkled flocking powder on top and cured it under a UV light. then all that's left is removing the excess and voila!
It feels a bit weird at first, bristly, but you get used to it fast and it holds up nicely during daily wear :) Plus I giggle every time I look at my hands!