Here is some of the sites that i use, hope this will help.
https://www.selectproducts.com (plexiglass,fiberglass,tools,fabrics)
https://www.installedge.com (wire,connectors,fans,istallation kits)
https://www.digikey.com (tape,wire,tools,meters,connectors)
https://www.neontime.com (for the real custom blown neons)
https://www.beingseen.com (lighting effects,flatlite,can be laid under 2way plexiglass)
https://www.e-lite.com (lighting effects,flatlite)
https://www.mcmaster.com (plexi benders,tools,"you name it")
https://www.gepolymershapes.com (plexi rods & tubes, othershapes)
https://www.regal-plastics.com (lexan,acrylics,Round tube,Round Rod,Square Rod,"J" Bar,"Z" Bar)
https://www.imsmetals.com (aluminum,sheets,tubing)
https://www.mcnichols.com/products (metals,for amp racks,door panel inserts)
https://www.eastwoodcompany.com (custom paints,sprayers,tools)
https://www.3m.com/us (tape,connectors,paint preparation system)
https://www.levineautoparts.com (paints,abrasives,supplies)
https://www.fiberglasswarehouse.com (mat,resins,supplies)
https://www.fibreglast.com (mat,resin,supplies)
https://www.uscomposites.com (mat,resins,plastics,carbon fiber,supplies)
https://www.smooth-on.com (liquid plastic & rubber,silicones,casting resins)
I hope this will not be deleted, and that if anyone has more to post them as well...........
Thanks, I've seen some of these before but I'll check out the others.
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Plan, Research, Do