Uniform display cases

Does anyone have some spare display cases that will fit 2 uniforms on mannequins. 24 inches by 36 inches is our optimal size but anything close will work for us. I need 6 or 7 cases, however they will be in two groupings so 3 or 4 that look the same works too. I can pay something for them but, like everyone, I’m trying to spread my money as far as possible. Many thanks Nat McHaffie Great War Flying Museum 416-740-6404