We conducted an audit experiment to examine whether street vendors in Bogotá (Colombia) exert price discrimination based on buyers' attributes, such as gender and nationality; and based on product characteristics, such as the increasing marginal valuation of items needed to complete a collection. We exploited the seasonal demand for album stickers related to the FIFA World Cup Russia 2018. In our within-subjects design, experimenters carried out in-person audits and quoted a pre-determined list of missing stickers. They interacted with 59 sticker vendors located in five geographic clusters. We find that prices quoted to foreign buyers are higher than prices quoted to Colombian buyers. By contrast, we do not find evidence supporting direct gender-based discrimination, neither that vendors charge a higher price per sticker when the list of missing stickers is shorter. We complement the study with a qualitative analysis based on interviews that reveal vendors' pricing strategies, their awareness of price discrimination, and the trade of counterfeits.