Vac Brush Alternative?

[darita]

For some reason I've lost several Festool round brush attachments for the standard 27mm hose.  I swear at some point, they just turn to dust and disappear.  Anyways, I'm wondering if there are any cheaper alternatives by maybe shop vac or someone else, that will fit the standard hose?

 

[Shane Holland]

This three-piece set is a decent price at $26.

http://www.festoolproducts.com/Festool-492392-CT-Cleaning-Accessory-Set-p/492392.htm

 

[darita]

I'm talking like $5 for a brush attachment.