Prop: Shop - Molding & Casting 101: Slush Casting

Picked one by one from a mixed channel. Transcript check: both title readers certain; 5 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only build and technique tutorials whose titles or content show a specific making process being taught (foam fabrication, molding/casting, 3D printing, vacuum forming, painting/weathering, multi-part build series). Exclude convention vlogs, Prop Culture/Diary episodes, giveaways, live Q&As, Patreon vlogs, business talks and loot/haul videos.