Hi there, I am very new to the community and am looking for people's ideas (and/or photos) of how they padded out the inside of their helmets. I have plenty of memory foam padding pieces left over from the military that I think might work to some degree, but as far as attachment to the interior of the helmet goes I could use some advice. Should I use adhesive velcro, glue, some combination of the above? Is it worth adding a chin strap or other retention device? Thank you very much.