[Flair]

There are no PERFECT rhymes to the word orange. However, and depending on your accent, there are some slant rhymes. A slant rhyme would be something that rhymes only if you say it the right way, or depending on your pronunciation. As for silver and purple? I know there was a song once that rhymed the word purple. it goes like this...

Well Roses are Red
And Violets are Purple
Sugar is Sweet
And So is Maple Surple

In other words, he created a word. So basically anything could rhyme, but no REAL words.