You know those soup containers you get at Chinese takeout places? The big ones? I bet you could use one and drill holes!
ZEML 32 oz. Deli Food Storage Freezer Containers With Leak-proof Lids - 24 Sets https://www.amazon.com/dp/B07RRR7NQH/ref=cm_sw_r_cp_api_glt_i_YHNKZ4017AC4JE5782BS
I found this but there are even bigger ones too!