My SO and I love to rock climb, we both also can't get enough of Kirby (mistakenly bought each other a Kirby amiibo for Christmas last year) and this year I wanted to do something a bit more original. She owns THIS pair of climbing shoes which she thought fit the best but left something to be desired in terms of looks. Looking at them I thought that perhaps I could use the larger grey area in the front to draw something. I came up with THIS.

So, my question is what should I use to draw these onto the shoe? The shoes themselves wont really get wet (besides from glorious foot sweat) because we almost exclusively climb indoors so I'm not worried about it washing off. I'm worried about the range of motion that is required for climbing and the rubbing against walls and fake rocks. Any tips? Also, anything I can use to pre-draw on the shoe so I don't fuck it up right away? I'm REALLY good at fucking up drawings I've practiced before.