There are an almost countless number of projects you can make with your 3D printer . And there are thousands upon thousands of them ready to go on websites like thingiverse. here are some That I found to be useful . . when you go into thingiverse and find a project that you like say a key chain that has a name written into it. the author will tell you if it can be customized. usually there will be a customized button on the page. when you push this You will go to thethingiverse customizer . it's actually pretty self explanatory and for doing names that is separate letters you can adjust the spacing so that Each letter touches the next one so that they don't print out a separate Pieces of plastic period of course you can scale these projects up and down and change the thickness or the length or the overall size of them.
Key Chains
Name key chain: https://www.thingiverse.com/thing:2444760
Another name keychain https://www.thingiverse.com/thing:1148986
Name keychain with separate letters you assemble https://www.thingiverse.com/thing:5941501
Loud whistle - very useful for Boy Scouts and Cub Scouts https://www.thingiverse.com/thing:1179160
Pencil name
Nameplate