You are sooo right not to use the branch you got if you're not sure what it is. hmmmmm Don't know what to tell ya there. I can identify some of them by their leaves and a few by their bark, but that is harder..other than maybe pine or white birch. LOL Do you have leaves on the trees? All our trees are bare right now.
Another perch they really love is the rope perches. Soft and comfy on their feet. Even a small one in an upper corner to sleep on.
All in good time tho. I know it takes a while to acquire different things. One step at a time...essentials first, which you have covered.

Oh, you can also use colored drinking straws to make toys, or buttons, or hey you have little kids... They must occasionally get those little rinky dink things from gumball machines? You can use the plastic bubble things(big ones and small ones) the toy comes in for a toy. My guys LOVE those things with a couple beads inside so it rattles. And also with a string with beads attached to it. If you look closely you can see one in my avi pic. It's hanging on the perch with a bell outside the cage door. Levi uses them as bombs. He picks them up with his feet and flies overhead and drops them on us! haha Those things are at the top of their favorite toy list.
As far as their gorgeous necklaces...I'm sorry to say they don;t all get pretty dark ones like illusive's Cappy. It depends on their coloring. Neither of my guys have them. Waah!!! Wellll, they HAVE them but they are very light and you can barely see them, except for the ones on each cheek. I know I am soooo jealous. LOL I doubt that Cheeko will have dark ones either. If you look closely can you see light colored ones now?