Designing tangible objects for children’s development andlearning has been a common theme in the HCI community.However, studies involving designing of tangibles fortoddlers’ hedonic interaction and play experiences havebeen few. This paper explores how toddlers (between oneand three years old) behave when interacting with tangibleplay objects in the context of open-ended play. The aim ofthis study was to explore how the integration ofmultisensory stimuli and multimodal feedback in tangibleobjects can affect toddlers’ play, behaviors and engagementin the context of open-ended play. Furthermore, two playobjects called Sound Cubes were developed and used in aninteraction study conducted at a preschool in Stockholm.The results presented in this paper suggest that the openendedplay objects provided toddlers with opportunity formultiple manipulations that lead to interesting interactions.Moreover, multimodal feedback and multisensory stimulicreated a positive affect on toddlers’ engagement in play.