it's not really a pyramid, but it's visual and involves exactly 11 people! i'll explain it, but its probably not going to be very clear so i'll post a video after practice tomorrow!!
on the ground, start with 2 bases bracing the flyer's arms on both sides. have the flyer face the backspot and the backspot hold one of her feet. the group should dip, and with the help of the backspot the flyer should do a backflip onto her stomach into the arms of 2 other bases, and someone else catching her legs/ ankles. that group will then reload the flyer into a sponge, and do a show n'go type thing with the flyer, but the flyer does a 1/2 turn onto her back into the group that originally had her. reload into a squish and as the group with the flyer reloads, have the other group do a shoulder sit and then go up to hitch. i hope this made since...