You can find souvenirs from the Night at the info-center in the central street near the Roman stadium.
And also in galleries: Aspekt, The Ancient Bath, City Art Gallery, Art- Spektar, Philipopolis
Prices of the souvenirs:
bag-pijama - 25lv.
T-shirt - 12lv.
torch - 4lv.
Cup - 6lv.
Badge - 3lv.
A package - T-shirt, brushes, bags, badges - 20lv.