Electronic Musical Instruments

If I were to put a Full size comforter on a Twin bed would there be a noticeable difference?

I have found the perfect comforter for a twin size bed, but I can only find it at a T.J. Maxx in a Full/Queen size comforter. Would it look horribly awkward on a twin size bed?

I think it would be just fine. Actually it is the way that I buy comforters for my bed. I have a queen size bed and I always purchase a King size comforter so it hangs over the sides a bit.
The full/queen size comforter will be about the same length, but the width will be about 15 inches wider, giving you about 7 inches or so over hang on each side. Should be just fine. I attached a sizing chart for your reference below.

(Truly) Full-Size EVE-Online Ships