After searching for a while I was unable to find a brush acessory for my Shark WV200C WANDVAC Handheld Vacuum. 

So I designed one. I used a Round Dust Brush 25mm Horse Hair 1.25" (32 mm O/D) Vacuum Cleaner Attachment Replacement I found on Amazon, here is the link (not affiliated, but like and comment to help me if you liked my design) : https://www.amazon.ca/gp/product/B01836HV5E/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 

I put the link since it is important to have the same dimensions, because a small difference may affect fit. In fact, tolerances used for the brush may make the fit tighter or looser, so you may have to put some electric tape if it is loose, or sand a bit the tube of the brush if too tight.

For the best fit, print at slower speed for better accuracy. I used 70 mm/s with PETG and it gave me great result, but I had to do 2 tries befor getting the good dimensions. Printing too fast (200 mm/s) made the fit worse. 

The outside diameter of the brush is +/- 32 mm. 

For better strenght, print it with 100% infill or multiple walls.

Enjoy !