We can use more art than just Haruto, if enough people are interested. We could gather up the best ones, put them to a community vote, then get those printed.
Another idea I had was doing a Kickstarter, GoFundMe, or OffBeatr fundraiser for them, so that 1) we'd know exactly how many people want, and 2) be able to afford them (it's a few hundred dollars investment PER design, so if we can get kickstarted for it then awesome ^_^)
So yes, if you have an idea for a dakimakura, whether it's yaoi, shota, furry, anything at all, post it here! No need to ask permission, I'll keep an eye out for art =)