So I've been in the market for a new office chair and despite being a "gaming" chair Andaseat is highly regarded for quality. Unfortunately, they seem to have just left the Australian market right when I was going to buy one of their chairs. But they are still in the US market and have new licensed Transformers gaming chairs. Optimus, Bumblebee and Megatron variants are available.

https://www.andaseat.com/collections...40547306405947