I think you're already including and posting a lot of stuff that would be behind a paywall in other games. So really, don't break your head over it too much. If you come up with something that doesn't cost too much or takes to much time, then by all means, go for it.
If I were only a little bit more proficient and fast at my woodcarving hobby, then I'd gladly make some little RahRah statue and make castings of it. Sadly, while I can make nice female figures by now, my carving isn't so good that I could give them the exact appearance of any specific person or character (except maybe Mickey Mouse, if I ever felt inclined to spend time on that). And it still takes me way longer than professional carvers to make a nice figure in the first place. (Professionals could make a nice 20 centimeter nude in as little as 16 hours, while it takes me closer to 40 hours to carve one xD)