Abstract: Assemblies combining a structure, such as a structure defined by magnetic connector pieces, with a slide assembly. In some embodiments, the slide assembly may comprise a plurality of slide pieces configured to be coupled together so as to define a slide configured to receive and direct one or more slideable pieces, such as balls, therein. The slide assembly may further comprise a plurality of slide coupling members configured to couple at least a subset of the plurality of slide pieces to the structure. The plurality of slide pieces may comprise a plurality of coupling joints configured to couple two adjacent slide pieces of the plurality of slide pieces together. Each of at least a subset of the plurality of coupling joints may be configured to be positioned at the same location in at least one dimension with respect to an adjacent structure piece upon being coupled with the structure.