I have seen these at lot on Pinterest and other clever bloggers pages. I really wanted my own so I thought I would have a go. All I used was 2 things and I was surprised how easy it was!
I lined up the seams on the PVC so that the corners turned like a 'phone' shape. Then I wrapped it with duct ape until it felt very firm.
And there it was - a neat little whisper phone.
Why not try it yourself?
Do you use whisper phones in your classroom?