Some places make toys for birds that incorporate plastic straws, I know, but I wouldn't be able to give them to my birds. Even budgies will chew up something as soft as a straw and I would never forgive myself if they happened to ingest some while playing. I try to stick with the harder plastics which they done seem to bother trying to chew. For the bigger bird acrylic seems to be safe, otherwise I keep a heap of natural things for him to chew - pine cones, gum nuts seed pods , natural branches, sea grass matting etc.
We are not Vets, Avian or otherwise. If you have any serious doubts about your budgies' health an appointment with an Avian vet should always be your first point of call.