Try Argos or eBay there good for stuff like that
The Sonic Screwdriver is a fictional device and cannot be found in stores.
there are very many places to buy the screwdriver. You can go on thinkgeek.com, amazon.com, undergroundtoys.com (to name a few).
You can find one on ebay.com
He didn't the TARDIS made him a new one.
I found some for purchase both on the Amazon and on the eBay websites. You can try the same; decide for yourself whether you consider them "cheap". I am not aware of any store that sells sonic screwdrivers, but if you search the Internet a bit more, you may able to find some. Please note that both Doctor Who and the "sonic screwdriver" are ficticious; you'll get a screwdriver that looks and perhaps sounds like the sonic screwdriver from Doctor Who, but not one that has all of its "magic".
Reach under a random woman's top intill u find 2 round objects twist them and go to your closest toy shop
You can find some on eBay, as well as on other online sale sites. DON'T EXPECT the screwdriver to work as in the television series; Doctor Who, and much of the technology used there, is fictitious.
metal sonic is not in sonic 3 only mecha sonic
You can find Sonic characters at Wikipedia and Google.
There is only one official Sonic RPG is Sonic Chronicles.
That all depends on the type of sonic
Try wikipedia or Sonic wiki.