To get a trophy check out this thread!
Random Trophies in Webkinz World - EXPLAINED!!
Cash Cow trophy - EXPLAINED
The trophy is awarded randomly when you click a group of the same colour that meets or exceeds a certain minimum size. There is no maximum, and there is NEVER a magic number that guarantees a win, or improves your chances in any way. The number of bottles in the minimum group depends only on the number of colours in play (which means it depends on a range of levels).
Level 1-3 (3 colours in play): 20 bottles or more
Level 4-7 (4 colours in play): 16 bottles or more
Level 8- (5 colours in play): 12 bottles or more
and so on, although your chances of reaching double-digit levels are so low that it hardly matters! Note that the trophy is awarded whether you play "easy" or "hard", but the above table is for the
easy mode (hard is like starting on level 4, which is not a great trophy strategy).
Clicking a group equal to or larger than the minimum size for that level gets you a 1 in 100 chance at the trophy. Colour, timing, position, points, etc., make no difference. Since you can do it a few times on each of the first three levels, you have quite a few chances, which is why it is one of the more common trophies. It is also a good idea to click a group close to the minimum, because you can get more chances per game. Many players focus on the first three levels, although I have won a trophy as high as level 7. Your odds do not improve with larger groups or on higher levels, BUT you can win multiple trophies in one game.