I threw a 30th Bday party for my bestfriend last June. A lot of the guests were out of town. I sent out a mailing that asked them all to write a letter about a fun memory with the person and send pictures. I put together a scrapbook and presented it to her at her party.
As far as her party I did a hawaiian Luau. It was a fun. I made a volcano cake, we did the limbo and did karaoke. It was a lot of fun.
Another thing my friend did for my 30th party was had all my friends bring 30 of something for my gifts. I got 30 apples, quarters, candy, candy bars,$30 dollars, $30 dollar gift card and a lot more. It was nice for people who were not able to come to the party still sent 30 gifts.
If you have any other questions please let me know.