Kerbal Space Program

You can use a Pod to duplicate EVA Experiments kits over and over, as well as other cargo items such as parachutes and more.
Steps to Replicate:

1) Start a new Sandbox game.
2) Make a vessel with an Mk1 pod with nothing in its inventory.
3) Have Kerbal have just 1 EVA Experiments Kit in its inventory.
4) Launch vehicle.
5) EVA Kerbal.
6) Right-Click Kerbal and Move EVA Kit From Kerbal inventory to Pod Inventory.
7) Board the Pod.
8) Right-Click Pod and note that the EVA Kit has been duplicated.
9) Consolidate the new EVA kit to the Kerbal's inventory.
10) Repeat steps 5-9 to DOUBLE the amount EVA science kits until the inventory is full (might take a little shuffling around to max out with 4 in each inventory slot).

Note that this duplication goes past the weight limit set inside the VAB when loading the inventory.

Do these same steps but using an MK3 Pod for more storage, and Any other cargo item in place of the EVA Science Kit
to duplicate (probably) any cargo part.