scratch-built

The transceiver had been scratch-built using components obtained from a variety of sources, and designed with a single task in mind.

Star Trek: Typhon Pact Paths of Disharmony

Mr. Harder, who is an audio engineer, and Mr. Baldwin have developed a side avocation of teaching fellow New Yorkers to build and fly these "scratch-built" airplanes, contraptions they call "flying towels" or "paper airplanes on steroids."

Paper Airplanes on Steroids

Messrs. Baldwin and Harder have built 35 or so "flying towels" and act as scratch-built evangelists, teaching others how to build and fly the planes at three-hour free sessions at the Brooklyn Aerodrome.

Recycling Takes to Air

Miss Monster has sculpted these scratch-built steampunk animal skulls that blow me away.

Boing Boing

A scratch-built crew from the 29th Group was downed on May 5, and met horrid ends.

Whirlwind

The plan is to cut the thing out of cardboard, reinforced with wire and coated with a layer of epoxy resin to stiffen it, with straps cannibalized from two women's watches to secure it; the round thing will probably be scratch-built with added blinkies.

Barbarella costume construction slowly beginning

This 13-foot scratch-built beauty features a carbon-fiber fuselage that houses four flight computers, four parachutes that will be deployed by compressed carbon dioxide canisters, and four solid-fuel motors that pack more thrust than a cruise missile.

Pyro Geek Hobbyists Experiment With Homebrew Rockets

My brother-in-law, Tony Harwood is a keen modeller and has scratch-built numerous steampunk models and his site is definitely worth taking a look at.

Steampunk

Above is a scratch-built arthropod-based vehicle from Dinotopia: The World Beneath.

Walking Vehicles, Part 1

Model builder Glenn Ludgate of Australia has built several scratch-built one-of-a-kind Dinotopia vehicles as hobby projects.

Walking Vehicles, part 2.