RockTumbler.com's detailed tumbling instructions turn a simple hobby into a practical reference on rock hardness, grit contamination, barrel loading, polishing, burnishing, and record keeping.
The Northwest Fighter Kite Association's surviving homepage preserves a late-1990s hobby-web outpost for single-line controllable fighter kites, meet reports, plans, locations, poems, and a proudly unserious plan for world domination.
Manfred Mornhinweg's Homo Ludens homepage branches into amateur radio, antique radios, electronics, flying, photography, music, model airplanes, mechanics, kayaking and more.