WTB Exterior Portion of An Overflow.

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I am looking to purchase an exterior portion of an overflow or have the exterior portioned created for a 10 gallon nano aquarium I am starting for my dinning room. I have already created the inside portion of the overflow and I just need something sturdy that can hang on and be plumbed into 3/4 in schedule 40 PVC pipe. Any help would be great. Thank you.