"Sparky’s Magic Piano" was the most popular album in the series. It is one of the few children’s albums of the period to remain available. Therefore, the original 78s have a relatively low collectors' value. However it is not easy to acquire a complete set of the original shellac records. The shellac records are distinguishable by their black Capitol labels. Vinyl 78 versions are more common, with purple Capitol labels and sometimes a “Bozo Approved” logo in the corner of the album cover.