Abstract: Disclosed is a snap-fit connection for construction elements having a construction element, which is connectable to a base element by bringing a first snap-fit element of the construction element into engagement with a second snap-fit element of the base element, the second snap-fit element being located inside an aperture in the base element, characterized in that the first snap-fit element has a bulge-like projection with a bulge diameter and the second snap-fit element has a web-like or shoulder-like projection on at least one wall of the aperture.

Abstract: A functional design element for use with a toy or toy-like assembly set comprises a substantially rectangular material strip being formed with two openings at its opposed longitudinal ends for two push-button-like fasteners whereby the material strip is formed either of a resiliently pliable or of a rigid synthetic resin within two respective groups of different functional design elements for obtaining technical-functional and at the same time esthetical different impressions for the visible surface of the assembled design body.