Don't if you'll like this or not but how about
having two words to start with and you have to change one of the words for another which will still go with the other.
Hope that makes sense. Example
street corner
you could then have
street lamp
or
corner shop
So to start,
life...........line
plastic bag
plastic paddy
plastic paddy
paddy field
dance shoes
dance shoes . . . spiritwalker?
paddy field
football field
football field
football fan
Sorry i joined in the middle - i am new to this
Football fan
Fan mail
fan mail
electric fan
electric shower
electric shower
shower cap
shower cap
rain shower
rain shower
rain drop
dew drop
dew drop
morning dew
morning dew
good morning
good morning
good afternoon
good afternoon
afternoon tea
afternoon tea
tea cup
tea cup
butter cup
Butter Cup
Cup cake
cup cake
birthday cake
birthday cake
birthday kiss
birthday kiss
first kiss
first kiss
first class
first class
class act
class act
double act
double act
last act
last act
last stand
last stand
stand up
stand up
up shot
up shot
shot down