On arrival you're presented with a menu of sandal types (some are named after their most famous patrons) to choose from. I went for the gallico: simple, ankle strap and three straps across the toes. The sandals are then taken away and adjusted to fit you. While you wait you can take in the shop, crammed with sandals, naturally, but also mementoes of past customers.
All this for a bargainous €28.
Melissinos Art, 2 Aghias Theklas St (just off Monastiraki Square), Athens