Halloween is considered a fad holiday i.e., with the exception of the basics, what is hot this year is old hat two years from now. Therefore, what suppliers create have one chance to be sold for a profit and what is leftover is trashed. The majority of what is available is targeted to a single price point: Cheap! This results in the supplies used having very open specifications.
What hits the market is flashed, sold and trashed. Government oversight is limited to month sized objects (children) and little more since the exposure time is limited to a few hours. Since parrots month everything, Halloween decorations IMHO should rarely be considered bird safe. The only exception would be that they are made from standard, commonly supplied (year around) toys in which you select parts from to create a seasonal toy or two.
Not all parrots are open to extensive short term changes to their world. Some could care less, far more freak-out. Only you know what kind of reaction your parrot will have based on several years of different parts of your home changing to specific seasons and holidays.
Based on the above, a manufacturer of bird safe toys is not going to invest in Halloween based toys. The market is too small and the season too specific (fad based).
Visit your local bird toy supplier and target toys that you can recreate into seasonal toys for your parrots. If you are not creating new toys from older toys you're not having enough fun!
