A vibrating toy. Picture is here: http://tinyurl.com/3p6kdt . Recorded with M-Audio Microtrak II.
Big robot footsteps, designed using several metal sounds, lfe sounds & Operator FM synth in Ableton
A simple bass/synth hit made with Logic's es2.
made by mixing synthesized sounds and self-recorded samples, compressed and EQ'd.
before-after remix of #151402, after has flanger effect
A rocket-launcher sound, good for videogames. Federico Manuti