#1:
There are lots of cool home furnishing pieces created during the CCCP era. Including, but not restricted to, Indian bowls, post-modern GDR porcelain, and brass monkeys holding salt and pepper shakers.
#2:
Clothing is harder to find, but there are second hand stores and you have to dig. Communist suits make for great Yoshi Yamamoto inspired looks. 60s-70s cotton dresses are very fun after alterations.
#3:
Jewelry designed by the now defunct souvenir factory blows my mind. Pieces are handmade or designed by arts. You'll find lots of filigree (http://en.wikipedia.org/wiki/Filigree), silver, and mercur (I don't know what metal this is).
My favorite thing to do is go to Vernisage and visit Suzy. Beside being one of my favorite people in Yerevan, she finds amazing vintage jewelry and is great at restoring. She's a third generation antique button collector and frequently incorporates them in the pieces she restores.
Here are a few of my favorite new rings:
-Purple stone is 60s Opera stage costume jewelry
-Dangling cuffing is silver and topaz attached to old band (both have factory stamp). One of Suzy's creations.
-Snakes symbolize wisdom. Factory made.
-I met the lady below at Suzy's stand. She was a school teacher.
(Nails are all mine and I do my own manicures.)