A yo-yo with a dried Heather (Calluna vulgaris) plant speciman imbedded into one halve. Very unusual. "Spin Blossom Heather" in text is on the opposite halve. Clear halves with brass axle.
Small Minds Press debuted in 1996 with the release of a yo-yo embedded with a scorpion. Over the next several years, the company released other novelty yo-yos with unusual embedded objects like the following:
Of interest... To see all filled yo-yos in this museum, in the left panel, select Exhibits. In the right pane, in the Name/Model field, type filled, then select Browse.