Most of mine:
The pair of desktop speakers I built for my brother, drivers are the 5" concave woofer and Nuance tweeter (Both PE buyouts).
A very inexpensive pair using the sony 5.25" and Nuance tweeter (More PE buyouts).
Some small bookshelfs using the Aura NS6 and a 3/4" softdome Neo buyout from a while back.
MTM with M&K buyout woofers and Dayton DC28.
Another 2-way bookshelf using a Bravox 6.5" buyout and Dayton DC28.
My LCR, built two of them with the Klipsch buyouts first then went to make a center and the klipsch's were sold out so I used some peerless buyouts that modeled very close in the same enclosure.
Selenium DH200E CD's (does ok but not the best) on the Dayton waveguide.
Folded Horn's with Dayton 8" DVC on left. On the right Dayton DCS380 in 8cuft tuned to 18hz under the white sub which is an ACI SV10 in a 2cuft 20hz tune.
next is the Bravox buyout sub 12ohm in the 38hz TH designed by Volvotreter. On the right is the pair of bass bins with 15" Alnico woofers made by H.H. Scott that I found at a Thrift store for $9.
They can really fill a room even without any sound.