LEGO Technic Material Handler 42144, Mechanical Model Crane Toy, with Manual and Pneumatic Functions, Construction Truck Building Set, Educational Toys - Walmart.com
Watch an Incredibly Complex Lego Machine Make Electronic Tunes | WIRED
App-Controlled Cat® D11 Bulldozer 42131 | Technic™ | Buy online at the Official LEGO® Shop US
BuWizz Ultimate Bundle + LEGO® 42140 | BuWizz | Bluetooth® remote control for LEGO® models
Janky Lego proof-of-concept for having burst-fire with a mechanical pusher. I don't believe this is something I've seen before, but that might just be because it's been tried before and doesn't work. :
Amazon.com: LEGO Technic Heavy-Duty Tow Truck 42128 with Crane Toy Model Building Set, Engineering for Kids Series : Everything Else
20 Mechanical Principles combined in a Useless Lego Machine - YouTube
The LEGO Power Functions Idea Book, Volume 1: Machines and Mechanisms: Isogawa, Yoshihito: 9781593276881: Amazon.com: Books
Liebherr R 9800 Excavator 42100 | Powered UP | Buy online at the Official LEGO® Shop US
LEGO Automaton - Motorized Escalator, by Takanori Hashimoto
LEGO Technic 42140 App-Controlled Transformation Vehicle - it's all about the flip [Review] - The Brothers Brick | The Brothers Brick