Three word game ...

[172traindriver]

with a cake

 

[LinchPin]

Topped with smarties

 

[Mad Doug Biker]

of dubious origin

 

[Katherine]

, luckily he also

 

[Mad Doug Biker]

had giant Toblerones

 

[LinchPin]

triangular in shape

 

[Mad Doug Biker]

, triangular in injuries,

 

[Joshua Plumtree]

triangular in triangles,

 

[Oldbloke]

triangular gum clamps

 

[classic33]

and a threeway

 

[Oldbloke]

satellite signal feeder

 

[Katherine]

disguised as a

 

[172traindriver]

large triangular tripod

 

[stephec]

With a melon

 

[Oldbloke]

,not a lemon