Normal paddles create rotation due to a node colliding with 2 other materials endlessly.
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1) Old School Paddle
The old school paddle was the first very popular paddle design.
Cost: $50
Tips:

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2) Cheap Sheet Paddle
These paddles are the most minimal paddles possible that can also effect the armadillo. They are very weak unless they are node-sharing.
Cost: $40

This design works best for tossing the armadillo somewhere at the beginning of the level. Make sure you node-share.
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3) Hudak's Paddle
This is the best but most expensive of the 3 normal paddle designs
Cost: $56
Tips:


Momentum Paddles
Momentum Paddles create rotation due to a node colliding and recolliding with only one other material. The material's rotational velocity must be above a certain threshold for the paddle to work.
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1) Momentum Cloth Paddle
This paddle is interesting, although not very practical.
Cost: $128
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2) Momentum Flag
Amusing.
Cost: $30
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Node-Sharing Paddles
If there is another material sharing a paddle's anchor, the paddle will spin faster.
The time it took for an example paddle to rotate 270 Degrees:
*The materials and paddle never touched except at the anchor point.
DNF Paddle without neighbor
0.57s - 1 Full metal bar
0.50s - 1 Full rubber
0.45s - 1 Full metal sheet
0.42s - 2 Full metal bars
0.39s - 1 Full rubber with -100% tension
0.36s - 2 Full rubbers
0.34s - 2 Full metal sheets
0.31s - 1 Full rocket
0.25s - 2 Full rockets
Flexible materials (rope, cloth, & elastic) had no effect.
Tips:


