Purple, orange, silver and oxygen, actually.
You can get Lozenge to rhyme with Orange, actually....
"I bought some sweets and a large lozenge,
I thought it was lemon but it tasted orange"
There's loads of rhymes for Oxygen, as the second syllable rhymes with 'then'.
"I said to Houston I was out of Oxygen
If you wanna vote do it by proxy then"
You can contrive a rhyme for Silver:
"She was draped with loads of silver
I wanted to take it so I had to kill her"
As for purple, same sort of thing:
"Fergies face is always bright purple
he looks like a drunk, choking uncle"
I'm available for writing inside birthday cards.