Might try:
Total Plastics Inc.
3316 Pagosa Ct.
Indy
317-543-3540
The company I work for buys from them. I believe they are much cheaper than McMaster.
I bought two large blocks for the same purpose at the Grainger Warehouse, I-69 and 96th, first building South of Home Depot. At the time, they had white and blue.
+1 for meyer plastics ive used them several times for many different projects.Meyer Plastic off of Binford Pkwy north of 62nd st. They will sell cut-offs for small jobs
same purpose? please do share!