It would be really hard to do. I have a separate collection of just coins that feature felines, and I'm always looking to expand it. My issue here isn't the price, so much as it is the fact that this is a pattern or trial piece, and not a coin. My collection is honestly made up of coins that have circulated, although I can't pass up the odd NCLT or bullion coin. I can't make up my mind whether or not these test pieces would fit in or not.