Try a Cabela's search with this "Cabela's Tinsel Inserts". Don't know if 2 1/2" is small enough for you though. You could always custom make your own with simple fly tying techniques too. Hope this helps?
Also, try... www.staminainc.com
They have Tinsel Teaser Skirts and Squid Skirt Inserts. You'd have to cut em down though for the smaller size hoochies. On the website do a search for "squid skirt inserts"
Captain Downriggins has a lot of neat information regarding hooks, twinkle skirts and line twist. Thanks. Still haven't found what I'm looking for but I think Silver Horde might have them; pursuing that.
Great link Silver Bullets! This should definitely satisfy those of us who like to make our presentations a little different than the rest. There are several other useful tips on the same page. Thanks!
I know this is an old thread but thought this might be useful...
The new 2013 Cabela's fishing catalog shows a new item by PLine... 2 1/2" mini tinsel squid inserts made with mylar/crystal flash in 5 different color combinations.