The original design is cool and well worth it for a try, but the wall thickness on the join was too flexible and snapped after our first drum session. The wall section is now thicker to cope with 'animated' drum solos and the core is solid to allow for infill percentages. Trade off is the larger amount of filament used, this uses 11m (34g) per leg vs 4.8m (14.6g).

Print Settings Used in Orca, PETG filament.

Layer height - 0.2mm
Wall loops - 3
Top Shell layer - 5
Bottom Shell Layer -5
Infill - 15%
Infill type - Cubic

No supports required.

Kudos to the OP, Shanecp. Many thanks for sending me down a rabbit hole of design and learning Fusion and Tinkercad, much appreciated.