Why not start with just adding ONE picture per person. To participate with something that represents you as a photographer and also an interesting personal challenge to choose. If you have more than one pic - show them on APUG. It should be enough to mount it on thin cardboard or behind equal thin matboard. Thick, sturdy mounting belong in exhibitions and not in a portfolio where they might damage others contributions. But there is something Iīd like to add. A small notebook where participants can write comments or whatever to the others. Actually, I will donate a small lightweight notebook if there isnīt already.