hookedonrc

Not sure what else to suggest. Although I did my tubes a little differently, they are pretty much like has already been suggested. I took a sheet of paper and rolled it up. I then inserted my finger in each end and pulled the roll tighter to make a smaller roll. I then put on a small rubber band to hold the paper in a smaller size than the holes in the wing rib. I then inserted the paper roll in the ribs and when in place, I cut loose the rubber band. The roll then expaned on its own to the size of the holes in the ribs. I then went back and taped (you could use glue) to hold the seam in place. Finally, I put a spot of glue on each rib where the paper came in contact with it. Worked fine for me. BTW: It was lined writing paper, nothing special. I just can't see spending $9.95 on something that cost me nothing.