Get a regular-sized envelope. Address it to someone special. Then, stuff it with as many things as you can: a letter, photographs, ripped out magazine articles, photocopies of poems, a short story, or passages from a novel, recipes, clipped newspaper articles, art work, poems or stories you’ve written… Anything that can be folded up and put in the envelope. Make sure to stuff it so full that you need to use tape to keep it sealed. This envelope should have serious heft. Once it’s sealed, get the proper postage put on it (definitely use stamps) and mail it off.