Well I was 60 last Sept and gave myself a party The one I wanted. LOL
Since I was bornin 1950 I had a 50's theme. I amde my poodle shirk, had saddle oxfords, scarf around my neck, ring, etc.
Everyone was aksed to dress in blue jeans tshirt sleeves rolled
up. hair slicked back etc.
I ahd a dj and he played all 50's music rock and roll. The decor on the walls were posters that said rock and roll. etc
We had a hula hoop contest, a twist contest etc.
Food was bar b que , pot salad, etc. The fixins were avail
to make root beer floats.
each place setting had a mini 45 record, individual bags of pea nuts, and 8 oz cokes { they odnt make 6 oz ones now}
the center of each table either had a paper juke box or record.
colors used were turquoise and black.
for each guest They were able to have there pic taken b4 the party in front of a 56 chevy Bel air, turquoise in color.
Maybe you can adapt the 60's {what was popular} in these ideas.
There is tons of stuff to order on line.
Also each place setting had a small paper bag of 50's candy, ie candy cigarettes, brown cows? etc.
Hope this helps get your creative juices flowing .
PM me if you need web site infor. I will try to dig it up.