You can get them here: http://www.dealsishop.com/silicone-replacement-ear-tips-for-apple-in-ear-headphones-remote.html
yes
Yes, you can buy replacement headphones for your iPod. You can get them from your local shopping center that have an electronics department like Wal-Mart and Kmart. I found these at Target. Apple Earphones with Remote and Mic - MA770G/A for $29.00
No, Beats by Dr. Dre headphones aren't and never were made by Apple. Apple sells Beats by Dr. Dre headphones but that is all. Monster used to manufacture Beats by Dr. Dre headphones but recently their five year contract ended and Beats by Dr. Dre is making their headphones independently.
Some people prefer apple headphones because they say that the fit is better on the ears, however some people say that bose has better sound quality.
metal.
£26.00
For the iPod Nano, Apple has designed a set of headphones that go specifically with it. The model is called EarPod and it includes a microphone to speak in.
As long as the headphones have a 3.5MM jack, the audio will work on almost all devices. The remote on Apple headphones usually don't work with other MP3s.
Apple Inc develops and designs iphone 5 headphones together with the smartphones.
You can get headphones from Argos, HMV, The Apple Store, Music Stores, House of Fraser, Debenhams, etc etc
You can find iPod headphones at pretty much any electronics store, including Apple. Go to your local Apple store or check out www.apple.com for a wide variety of choices.
iPod earphones are compatible with most standard headphones and earbuds, which are readily available just about anywhere. Apple brand earbuds can be purchased from the online or storefront Apple Store, or from reseller sites like eBay.