Here's how I tackled the Pledge Fabric Sweeper and won.
You'll need a 3/4" Neopreme Rubber Grommet, a #7 Tapered Cork Stopper, and a pen knife.
Step 1: How-To Make It Happen...
Hold the rubber grommet against the top edge of the "flat side," where the <- SLIDE -> label resides. This point is technically along the "bottom" of this label. Trace the grommet with a pen or marker.
Carefully cut along the inside of the circle you just put down...I'd take it in about an 1/8 of an inch(?) -- I apologize for not having the exact measurements here.
Fit the grommet into place and gently cap it off with the #7 cork stopper.
When your Fabric Sweeper is full, pop the cork and vacuum out the contents!