Three word game ...

[Fnaar]

Rally starts and

 

[mistyoptic]

Nazgûls steal chips

 

[classic33]

as they ride

 

[Fnaar]

two-wheeled unicycles

 

[classic33]

through the night

 

[mistyoptic]

heading for Mordor

 

[classic33]

to hide amongst

 

[Fnaar]

some albino ferrets

 

[classic33]

'til the morning

 

[Wixsteman]

Has melted away

 

[mistyoptic]

like Cadbury’s Flake

 

[classic33]

on a warm

 

[Wixsteman]

Shiny car bonnet

 

[classic33]

on a summers

 

[Fnaar]

catalogue of undercrackers