Sometimes you need to think out of the box when looking.For instance on your travels just look in non obvious places and bingo you find things that are very suitable and often better.Our local clear out store was selling the other day some Sony PSP accessory kit for a £1,i threw away the bits i did not want but kept the charging leads and adaptors and the 12v plug which now can power up my tablet and mobile with the aid of a little adaptor bought separate and it all lives in a nice Sony case easily £25 worth there so happy days.