I've posted this on Talk Budgies, but thought it would be helpful here too.
I thought I would share with everyone how to make corn pockets. I know many members on here own Conures and larger-than-budgie parrots, so try them out on them.

It costs only a few cents to make each pocket, so it is a very affordable toy or treat!
Any parrot that holds food with their feet will love these pockets! If you want to try them on your budgies, then just grab a piece of string to hang the pockets in the cage.
Step 1
For my corn pockets I used Natural Mixed Nuts.* If using nuts as well, make sure they aren't salted or roasted. Just nice and natural.
If your parrot prefers a different treat then you can use almost anything to stuff the corn pockets with! Try sunflower seeds, corn kernels, peas, sprouts, etc.
You will also need a corn cob with the husks still attached. One corn cob will give you plenty of pockets.
*Just remember that you should feed out the corn pockets sparingly if you are stuffing them with high-fat treats such as nuts and sunflower seeds!
Step 2
Dehusk the corn carefully while making sure you don't tear them.
Here I removed two husk leaves.
Step 3
Cut off the very hard bit at the bottom of the husk leaf and also the top point if you think it is needed.
Scissors work great for this job!
Step 4
Take on husk leaf and tear it in half following the grain. You will need a piece that is about 4cm across. You should be able to make two pockets with every husk leaf.
Here is one husk leaf I ripped in two. I also ripped off two small strips (about 1cm across) which I will use to tie the pockets up.
Step 5
Place the food treat inside and at the bottom of the husk.
Step 6
Fold the sides of the husk over the treat.
Step 7
Fold the treat up into the husk making sure that the treat remains inside. Try to prevent any gaps from forming.
This is how it should look once you have folded it up into a neat pocket.
Step 8
Take the thin strip of husk leaf and place it under the pocket.
Step 9
Tie a knot in the strip of husk leaf to keep the pocket from popping open.
It is always a good idea to make a double-knot.
Step 10
It takes aproximately 30 seconds to make each pocket once you get the hang of it.
Depending on the food filling*, you can store them in the fridge untill the husks go brown. This takes about two weeks.
*Food fillings such as nuts and sunfower seeds will not go off and will be able to keep until the husks go brown. Fillings such as sprouted seeds, fruit or veggies have a much shorter storage time and will need to be checked daily to make sure they are fresh.
Here are some photos of Clopin enjoying her corn pocket!
Corn Pocket!
Managed to chew off the knot.
What's inside this one...?
Found the delicious nut!
Total Costs
Bag of Natural Mixed Nuts 250g - $5.50
Corn Cob with Husk - $0.50
Total - $6.00
Makes about 20 Corn Pockets (with plenty of nuts leftover for more).