I am not a big fan of single use tools but this is by far the only tool for this job. We had a party where I needed to core and slice about 3 cases of pineapples, and what would have taken all day took a few hours. No skill is needed. You just cut the top off of the pineapple and screw down the corer. Once you are at the bottom just pull out the meat and you're done. The pineapple is evenly sliced and you are left with a useable hull (for making fruity drinks in of course). I have seen them for sale for as little as 7 dollars.

-- Walter Susong III

Pineapple Slicer
$10
Available from Amazon