"I tested one and it worked fine. You don't put your mouth around the whole whistle just over the circular opening. My almost 3 yo cant make the whistle blow that way, but he makes it work by putting his upper lip over the top of the cicular opening and the bottom lip over the bottom edge of the square tip. The sound isn't as loud but it works. Overall the sound is a muffled low pitch whistle sound. It works for us. I had bought the same wooden 4 chamber one with a Thomas the train wrapper around it which made the whistle price marked up to $4 each and a plastic 3-4 (?) chamber one (louder higher pitch sound) from a local US Toys store to test 1st, and he like the wooden one better. (He was told Thomas wasn't going to be on the wooden one but he still chose it...not sure if he understood when he picked the wooden one over the plastic one). Both were found on this website at the time of purchase. With the plastic one, because of the way he placed his mouth to make sound, he would only cover 1-2 chambers so the sound was even a higher pitch sound then when I blew it. The wooden one sounded more like a train whistle (muffled lower pitch)."
"The bandanas are of good quality for the price. The print is on both sides and the material isn't too thin. They are big but probably the size of any bandana and were great to use as sacks for party favors. Will probably have to double fold to tie around 3 yo necks so not to cover too much of child's front. The bandanas have a startchy feel but not super stiff. I was originally going to buy the train theme party favors (engineer's hat, bandana, and 4 chamber train whistle) at a local US Toys store for cheaper price but didn't cuz the hats (forgot price) and bandanas (12 for $9) were of paper thin see through material. These bandanas are much better. Glad I spent a little more for better quality."