When I was still teaching, my advanced HS theatre arts classes would do the costumes for the local K-5 Children's Theatre Arts Program. (Tho' after making the 30 tabards for chorus in Shrek, Jr. they never wanted see bias tape again!)
Perhaps contact local HS theatre teacher, or if the HS has one, the Fashion Arts and Technology (the modern name for the CTE course formerly called Sewing & Tailoring, now includes design component) to see if they might want to help you and have an immediate class project to challenge their students.
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Douglas Fox
Lumberton NC
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