LaserPecker Baseplate fan exhaust but can be used for anything really.
Caters for 8cm/ 10cm and 12cm pc fans.
What you see in the images is a usb 8cm fan attached to a 8cm exhaust pipe.
See it in action: on in the facebook post.
https://www.facebook.com/groups/lp2users/permalink/1677248492614677
If you use a larger fan it is highly recommended to use an larger exhaust pipe also as you are pushing the air out the hose rather than pulling. That said, no harm it turning things around...
The author marked this model as their own original creation.