WOK gives away VST plugins as Xmas gift to everyone who writes a Christmas card or donates money for charity

Developer WOK's annually Christmas present this season contains a synth "with a special character" and a "tricky" audio effect plugin not available elsewhere.
To get it, a little effort is necessary: Write a real Christmas card to the developer or, even better, donate some money to a charity organization.
More info, address and donation links can be found on WOK's website.