I bring my MP3 player on every flight. It means the music I want to listen to is available, and it's small and portable making it easy to transport on board. And they have become a very affordable gift option...
1. Memorex MMP8551 512MB MP3 Player
May not have much storage, but it's cute and cheap - spotted this for under $15.
2. Apple iPod shuffle 2nd Generation 1GB MP3 Player - Blue
This is an entry level iPod with a price tag under $50.4. SanDisk Sansa Clip SDMX18R-002GK-A57 Flash MP3 Player
This is a compact, clip on mp3 player and is under $40 online.
5. Coby MP315-4GBLK Micro MP3 Player with LCD and FM Radio 4 GB Flash Memory
This MP3 player has 4GB and starts at about $20, the least expensive for 4GB of the bunch.
6. Mach Speed ECLIPSE-180 8GB Blue MP3 Player
An inexpensive price point for more storage - 8GB - starting at under $45.