I thought about doing it and I did! That blob use to be a milk bottle. I clamped the hot plastic between two boards with 5/16th spacers to get the thickness I wanted. Cut real easy with no clogging or melting on the jigsaw. Seems strong enough but will test it tomorrow. My wife was impressed.
Reuse, repurpose, recycle, dang I feel like huggin' a tree right now. Next project HDPE hard point handle. I've got a new hobby now melting things.
MM