Make them small, ie size of your thumb nail. You can make them larger, quarter size, even up to golf ball size when fishing in muddy water or for salmon.
Try sprinkling some hobby store silver glitter on the eggs before you tie up the sac. I usually add a little crazy glue to the thread knot and then later use that location to pass my hook point thru when rigging it up.
Finally for about $10 you can get a little "kit" which includes the sac material, thread, and most importantly, a jig that makes it far easier to tie the sacs.
Once made, you can store them just as you would cured roe, ie refrigerate, freeze, etc.
An interesting alternative to roe is to tie up tuna in the sacs, but that is a secret
Good luck
[ 02-28-2004, 01:51 PM: Message edited by: JohnB ]