Here is a cheap and easy blokart pod you can make yourself. Note this is not an official blokart product for racing in blokart events however if you sail as a mini or just want to stop getting covered in crap they are fine.

Materials:
-silver tarp
-25mm webbing
-Press stud domes
-Core flute (screeN)
-Plywood
-10mmx 2mm Flatbar
-SS srews
-Tarp Bungies
-Silver duct tape

Think total cost was less than $50AUD