These are quarter scale market stalls offered as kits by Suzanne Larson-Tamburo of Andrewsminis.com. They're cute kits that have a base that is under 2 inch wide and high and range from $12 to $17 (at least the ones I bought).
Although small, it takes at least 1-2 days to complete each stall kit and the painting can drive you batty. However, when it's all done, you really enjoy the end result and they take up hardly any room at all.
I collected mainly the ones that represent a holiday or a special feature related to conventions or houseparties I have attended.
The Playtime market stall was offered during 2013's Lexington Playtime Memories Houseparty.