Jetpack
From The Blockheads Wiki
A jetpack is made of a lot of carbon fibre. It requires 2 carbon fibre wings, 1 chassis, 10 fuel, and 2 jet engines. It lets you fly around freely. You can find floating islands with a jetpack. A jetpack is the most advanced feature in the game, which was added in 1.6. Fuel: it uses fuel, which needs 10 oil to craft