Fork of Rubber Ducky by RedWizard, updated for Factorio 2.0 and Space Age.

A recipe that requires 1 of all craftable items in the game.
As everyone knows, rubber duckies are notoriously hard to produce.
How many RDPM can you sustain?

Changes from the original:

• I was unable to get the Rubber Ducky Sweatshop to work, so I removed it and made ducks and duck parts craftable in assemblers. (Help wanted to restore sweatshops and get them working properly)
• Various internal changes for compatibility with Factorio 2.0 and Space Age. For example, agriculture products are now recognized as being obtainable items and will be required to craft ducks.
• The rubber ducky quacks when picked up or placed into an inventory.
• If Space Age is active, the Rubber Ducky technology additionally requires promethium science to research.