If nothing else screams Mother's Day gift like this Blendtec Classic Blender, than I don't know what does! I love my Blendtec and use it several times a week (and even more when I get on a smoothie kick!)
Right now on ebay, you can purchase this Classic Blentec Blender for only $179.99 (Reg. $399!) You don't have to bid, or anything like that. You are able to buy it now for that price! AND shipping is free. Plus, this is a brand new blender–NOT USED.
If you are thinking of it as a Mother's Day Gift, it won't arrive until May 10-18, but you could make your mom a card with picture of it and say it's on it's way! This is a great price, and these have a 8 YEAR Warranty!
Get it here: Blendtec 475 Classic Blender, $179.99 + Free Shipping!