Feadoggie wrote:
The simplest roll bags are a trifold design. They can be made from a towel - you choose the size depending on the whistles. One fold forms the outer bag or back. The second fold forms the inner bag or front. The third fold forms the flap which hold the whistles in the bag. The third flap does not have to be as large as the other two. Basically fold the first two fold over and sew along the outer edges to form a simple beg. Then sew pockets from the bottom edge up towards the opening of the bag. Spacing depends upon the diameter of your whistle bodies. Sew a diagonal if you want the heads to stay up near the top of the opening. Finally sew on ribbon or cord to tie around the whistle roll.
Yep, mine were made from towelling after my partial mock-ups with safety pins and old towels (all I had to hand!) suggested that the material had some merits for the job, but edged across the pocket tops and round the outsides with acrylic tape. While we'd originally planned to sew the diagonals (or separate 'ends' like your bag shown above) to suit complete whistle 'sets', further testing led us to leave the larger bag at three discrete lengths (several pockets each at low D, low F and A length) and the smaller one (for smaller whistles) at a single length for increased versatility (the point being that you're not 'losing' a slightly shorter whistle in a slightly overlength pocket, but can't put a longer one in a shorter pocket!). And we've left off straps or ties for the time being, with separate (non-fixed) straps currently suiting me fine.
Will try to get some photos and measurements up soon.