Beaded Order of the Arrow sashes have always been items that generate a great deal of interest, particularly to those interested in the ceremonial aspects of the Order. I remember seeing the fully beaded sashes with the beaded legend on the back used by the Tamegonit Lodge ceremonial team. Assuming these are made by hand, it would take a tremendous amount of time and tedious work to construct one of these sashes. I did a quick search and there are several tutorials on how to construct your own beaded flap if you so choose.
In that same vein, here is a beaded Tamegonit Lodge flap from the early 1980s:
Made by a lodge member at the time, the flap is similar in size to a typical flap and appears to be modeled after the S11 flap shown below which dates to 1984-85. The beaded flap has jewel-type beads that give the appearance of a mylar border.
An interesting item that could be repeated by an industrius Arrowman with plently of time on his hands.