It can, depending on the accent used, but even then would be considered assonance which is defined as resemblance in sound or a partial rhyme.
An option could be "pencil pen."
Yep- definitely
nothing its like orange
plain
once once once
No, vain and again are not approximate rhymes. Approximate rhymes have similar sounds but are not an exact match, while vain and again do not share significant sound similarities.
Them again
that again
Hannigan Flannigan can again fan again
once
give me a peng
no.. not really
Ten
Spain.
The word "what" in that sentence ("I can't what to play") makes no sense. Perhaps you mean "wait"? Please see the related question below for "What rhymes with again?"
abstain stain again