I just got a Keepall 60 to add to my collection, and I am searching all over for those custom made pillow stuffers. Seems no on is selling those anymore!?
I use mine to store my "collectible" t-shirts. They roll up perfectly and you can make it as firm or squishy as you like - you can even get those lower corners pressed out to form the perfect shape. FWIW I have 6 Keepalls - cloth items like towels or t-shirts seem to work better than things like bubble wrap or cardboard shapers. I don't have this one though..... not yet!