I'd like to make my B&G Macaw some rope toys, nets etc... My question is, can I purchase rope to make these items from local stores, like fleet farm, home depot etc... or should I order it from a bird supply store? At our local fleet farm they had a rope called manila (I think). My concern is that maybe some ropes are treated with chemicals that could be harmful to my bird. Can I use a plain old cotton rope, and if so can it have colored threads in it? Thanks for any info. I'm new to birds and want to make sure I'm doing things right!