Toys having interchangeable parts are disclosed herein. In some embodiments, a toy includes two or more toy components or modules that can be releasably coupled together. Each toy component can include a (i) a body defining a sound-reflecting chamber having an opening and (ii) a fastener assembly coupled to the body. The fastener assembly can include a base and a fastener positioned in a recess of the base. The base can be positioned over the opening of the sound-reflecting chamber and coupled to the body. The fastener is configured to generate sound when the fastener is engaged to and/or disengaged from the mating fastener of another toy component, and the sound-reflecting chamber is configured to reflect the sound out of the body.