This is a simple 2 minutes work, it features 4 towel models folded circularly. I did this cause there is hardly any tutorial on how to get this done. The best part: no particle system was used to fix up the actual material hereby reducing file size and memory consumption (because it takes at least 1000000 hair samples to get a proper towel in Blender), instead bump and displacement maps were utilized to give the towel a kind of non-flat nature. UV unwrapping is 70% accurate at best (i just modeled to please my camera :P). 100% customizable and 0% memory usage (;P).