This document discusses several homemade projects created with low budgets between 30-75 RON using Arduino and 3D printing technologies. It highlights projects like a smart frying pan enabled by Facebook, a Sprite camera, an anti-snoring solution, a Pebble smartwatch, and a 3D Doodler pen. Common elements are the use of affordable hardware like Arduino, 3D printed parts, and free software to allow passionate hobbyists to create innovative devices and prototypes on small budgets. Key technologies that enable these projects are discussed.