Thanks for passing by my site and for taking the time out to look up your answer in the FAQ . It is possible to make vinyl from mp3s, but there are several things you should be aware of. Firstly, you must own the copyright in the mp3s so that you can legally reproduce them.
If you do, there will be several conversion process you must go through to convert the mp3s to a suitable format, and you should be aware that mp3 is probably not as good quality as you might desire for a record. Unfortunately my site is just for info and links to http://www.independentpressing.com who handle the business.