Last pumpkin in the patch

Tonight is Halloween, it is not a festival l grew up with - or like but is lots of fun for most kids.  It seems to have become (like lots of other festivals) very commercialised and this morning M announced he would not be buying me a boo basket (not a problem as l had not heard of them).  What is a boo basket?  Its a wicker basket full of sweets and themed goodies.