Hi. Before you can write a slant rhyme poem, it is important to know what it is. It is a rhyme in which the stressed syllables of ending consonants match, however, the preceding vowel sounds do not match.
An example of a slant rhyme poem is Emily Dickinson's, "The Difference between Dispair"...
The mind is smooth - no motion
contented as the eye (slanted)
upon the forehead of a bust
that knows - it cannot see (slanted)
I hope this helps a little.
Take care,
Diana