A big red button with an actual spring inside! The button can be pushed down an entire block's height.The spring is from a disposable ballpoint pen, so it's easy to acquire for anyone. Their
Creator MOC 73196 Red Super Mario 64 Question Mark Block - LEPIN™ Land Shop
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Red Storm] MOC Building Blocks Suitable for Lego 8 Grid Car Super Running Assembled Speed Series Boys - AliExpress
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LE Lego Exclusive Set 6313287 Red Buildable Brick : Toys & Games
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LEGO MOC Pushable Big Red Button (black version) by Balage64
Red Sports Car with black wheels MOC Model Built compatible with LEGO® Bricks
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MOCs Designed by Balage64 Rebrickable - Build with LEGO