Quite simple, post a word that cannot be associated with the previous word at all.
Good example: Oven > Hike (https://dl.dropboxusercontent.com/u/253164678/ThumbGood2.gif)
Bad example: (and therefore wrong) Oven > Light (https://dl.dropboxusercontent.com/u/253164678/thumbdown3.gif)
So to start off I give you:-
Dustbin
Dustbin > Fruit
Fruit ➔ Undertaker
Undertaker > Notes
Notes ➔ Compounded
compounded » thunderstorm
thunderstorm ➔ marmalade
marmalade » rejuvenate
rejuvenate ➔ boiled
boiled > pen
pen ➔ plough
plough » tremendous
tremendous ➔ frisky
frisky » consistency
consistency ➔ draught
draught » dream
dream ➔ bookend
bookend » explore
explore ➔ inhale
inhale » peaceful
peaceful ➔ lemonade
lemonade » tobacco
tobacco ➔ digital
digital » medieval
medieval ➔ levitate
levitate » cloud
cloud ➔ bureaucrat
bureaucrat ➤ spaceship
spaceship ➔ caramel
Caramel -> tv
tv ➔ windpipe
windpipe → sticker
sticker ➔ pollinate
Pollinate -> ceramic
ceramic ➔ minstrel
minstrel → grape
grape ➔ mercenary