"Hamster Ball", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
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Reportedly, double-walled inflatable balls like this exist somewhere. Now to find that place.
"Hamster Ball", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
Reportedly, double-walled inflatable balls like this exist somewhere. Now to find that place.