A friend suspends an antique wooden wagon wheel from the ceiling in his cabin kitchen and hangs pots from it.

I have a 2 decades-old Hershy's syrup can that I use as a biscuit-cutter.

Some folks flute the edge of their pie crusts w/ a fork- or even a spoon.

In one of Jamie Oliver's cookbooks he bakes individual loaves of "flower pot bread" in tiny tomato paste cans and puts them at each place-setting. I've also known folks who bake quick-breads in one-pound coffee-cans for a newt effect...

What gadgets or lost/found items do you have that pull a "double-duty" or that you've discovered a NEW use for?

We've done the "can" thing for baking for decades!
I have several different sized plastic glasses that I use for biscuits, cookies, pastas, etc. They work great. I have stainless steel trays that I use as baking sheets. My pizza wheel is my favorite cutter - and not just for pizza.
Velveeta cheese boxes are great for holding homemade salad mixes (dry mixes - Italian dressings, etc.) that I combine and store in "packets".
Tuna cans are great biscuit/cookie cutters - so are other size cans.
Plastic wide-mouth Miracle Whip jars are great for the freezer with broths, chilis, sauces, etc.
I recycle anything I can and make-do with just about anything when needed.

RE: "Plastic wide-mouth Miracle Whip jars"

Oh- you reminded me, mama! In restaurants we often used the extra-large wide jar lids from Mayo Gallons as burger presses to pack ground beef into and shape/form our burger patties...

There is so much that you can "recycle" in the kitchen! I've used those lids for burgers and sausage patties. I buy a lot of institutional sized jars which I use for holding my homemade mixes, flours, sugars, dried pastas, cereals, etc.

A trick I learned for those lids from, of all people, Rachael Ray:

When you need to halve a bunch of cherry tomatoes, or olives, or things of that nature, take two of those lids. Arrange the fruits in a single layer on one of them. Top with the second.

While applying slight downward pressure with the palm of your hand, slice through the cutting-line formed by the two lids.

Voila!

I use 1/2 gallon canning jars to store my grains, beans, some pastas, dried fruits, etc. When I can find the old ones with the zinc lids I prefer those, only because they are prettier on the shelf.

If you garden, almost every meat, veggie, and dairy container can be recycled into a seed starting "flat" or actually be used as a garden. There is no need to bumb your seedlings into commercial flower pots, for instance. Not when you have all those yogurt containers. Or try cutting the shoulders/necks off of pop bottles. Staple them, in rows, to an empty wall. Fill with soil and put one plant in each bottle.