I found these pics online, but no names or details were included with them. So, if you see something you recognize, let me know in the comments and I'll add the name in the caption under the pic .
Also, if you know of a unique rare weapon that isn't listed here please add a pic in the comments and I'll add it to this blog.
1 - Pistola con Caricato - http://guns.wikia.com/wiki/Pistola_con_Caricato
3 - Treeby Chain Gun - https://www.forgottenweapons.com/rifles/treeby-chain-gun/
6 - Treeby Chain Gun - https://www.forgottenweapons.com/rifles/treeby-chain-gun/
10 - Duck Foot Pistol - http://dave-cushman.net/shot/ducksfoot.html
11 - Petit Protector Ring Gun - https://www.guns.com/2013/08/17/the-petit-protector-the-ultimate-ring-pop/
12 Painted NERF blaster.
16 - Pepper-Box Revolver - http://firearmshistory.blogspot.com/2010/06/revolvers-pepper-box-revolver.html
18 - Pepper-Box Revolver - http://firearmshistory.blogspot.com/2010/06/revolvers-pepper-box-revolver.html
19 Apache Centerfire Revolver http://www.gunsandammo.com/editorial/three-weapons-one-apache-centerfire-revolver/249789