Other sources for snacks/toy pieces?

[TJ Relic]

I was browsing the local chain pet store for birdie toys and treats. I usually find my way to the ferrets/rabbits/etc. section. I bought a package of plastic balls with bells inside once that Rigel loves. Lots of the snacks are from Kaytee, some are even the same stuff just with different animals on the front, I checked. (Kaytee Crunch A Rounds) It got me looking at the other items and wondering what is safe for birdies that I could use in hanging toys. Let me know if you see anything clearly objectionable?

All of these are found at petco.com under Small Animals > Treats

Super Pet Branch Bites
Chemical free branches are harvested from a sustainable wood source. Branch Bites are made from gooseberry* fruitwood trees. Each Big Branch Bite features a center hole to make them easy to slide onto a Super Pet Ka-Bob treat dispenser
*Not on any of the safe/toxic lists I can find.

CarrotSlims -
Wheat flour, corn grits, soybean meal, dehydrated carrots, vitamin A, D3, and E supplements

Animal Lovers Gnaw-Dent
Made from arbutus, a hardwood from the pacific northwest, these triangular pieces are free of insecticides and pollutants.

Animalovens Veggie Burgers are crunchy, oven baked treats...
Whole wheat flour, corn flour, oat flour, dehydrated spinach, dehydrated kale, dehydrated carrots, vegetable oil, corn syrup, natural colors.

Brown's Falfa Cravins Treats
Cake-slice shaped, tasty treats are made with real carrots, apples and raisins. Oven baked with a little love in every crispy bite. Great source of fiber and protein. Ideal for guinea pigs, chinchillas, rabbits, and parrots.
Ingredients; Wheat flour, oat flour, apple pomace, ground carrots, alfalfa meal, rolled oat flakes, vegetable oil (naturally preserved with mixed tocopherols, citric acid, and rosemary extract), flax seed meal, norwegian kelp powder, raisins, anise oil, orange color, ascorbic acid, biotin, zinc methionine, vitamin E.


Also, I'm interested in growing fresh greens for him, rather than wasting money on a bag of greens that go bad asap or confining him to dried green mixes. I was hoping to start with the Pet Grass I see at Petco. Is it okay and do they like it? What other plants are relatively easy to grow inside where he can forage in them? Is there anything in the potting soil that could be a danger?

[TJ Relic]

Sorry, I put this in the wrong thread, please disregard.