"Cracking toast" is a phrase from Wallace & Gromit and Max from Sam & Max is a lagomorph
Game:
Nelson Tethers: Puzzle Agent
The maimtron is a robot commisioned by president Max in Telltale's Sam & Max series. Plush Agent Knittery refers to Telltale forum member Avistew, who knitted plush versions of Sam & Max and sent them to Telltale's offices.
Game:
Nelson Tethers: Puzzle Agent