Additional resources and where to get them
Whirly tubes - 80cm long
About £1.50 from Knock on Wood Music Supplies
Tibetan bells
About £13 from Knock on Wood Music Supplies
Middle human ear model
About £18 from In One Word Medical Supplies
Ear plugs
all from Earplugshop.com
- Moldex Spark Plugs about £23 for 200
- Macks High Fidelity Hear plugs about £9 a pair
- Alpine MusicSafe Pro Earplugs about £16 a pair
Plastic rulers
Available from many stationary suppliers; probably best to use the one your workplace has an account with. We used some from Euro Office about £150 for 10
Slinky spring
About £3 from OtherLand Toys
Magnetic paper and magnetic receptive flex-o-metal A4 sheets
The picture of the ear can be stuck onto the flex-o-metal material and the labels printed on magnetic paper. Both sheets can be covered in sticky-back plastic to make them more durable.
Both available from Abel Magnets.