Desktop CNC machines are expensive enough that most hobbyists buy the machine and then stop. These gifts address the gap between 'machine sitting in the garage' and 'actually using it well' — quality end mills that don't snap on the second cut, clamping that actually holds workpieces, and material sampler packs that let someone practice without committing to expensive stock.
“The one reliable rule of gift-giving: anything that makes them look more serious at what they love will be received with disproportionate gratitude.”
Friends claim items. No duplicates. No awkward conversations.