i have a betta fish in a 1 gallon bowl, and bigger bowls in pet stores are way to expensive?

i want to get a bigger bowl for my betta, but the pet stores are way to expensive, it’s 40 dollars for a bowl
no insulting answers
so is there any way to have something less expensive?

15LB Used Roto Grip Mutant Cell
$31.00 (9 Bids)
End Date: Thursday Apr-24-2014 4:33:07 PDT
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