Brio compatible large carriages??

[Bubblesandpop]

Hi,
My son has asked for a train for his train track (Brio) with big enough carriages that he can build a track from the kitchen and deliver real salad and desserts to us 😂
I love the idea of this but can’t find anything online that fits this! Has anyone seen a Brio compatible train or carriage that could carry a small dessert or a few tomatoes???
Any DIY ideas welcome too, happy to customise something but I’m not coming up with any ideas that would work with this request!!! 😬