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?

Elite Sabotage Bowling Ball - Drilled Test Ball - 15lb
$44.00 (10 Bids)
End Date: Thursday Apr-17-2014 7:57:02 PDT
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