Of course you can auction it if you like. However, you can also use it as a souvenir collection, which can make you remember that you have a good mood every day. After all, it was Beckham who left you the best memory. But if it is really difficult, it can be auctioned. I estimate that as long as you have good skills, you should be able to buy more than 3000 euros. That's it. It's up to you.