More themes

Animals
Barnyard Party
Bird Party
Dinosaur Party
Mice Party
Pink Flamingo Party
Teddy Bear Picnic Party

Arts and Crafts
Arts and Crafts Party
Portrait Artist Party

The Beach
Tropical Paradise

Cartoons
Scooby Doo

Casino
Casino Night

Construction
Construction Cleanup

Create, Create, Create
Famous Authors' Gathering Party
Science Party
Share The Memories Party
Star In Your Own Video Party

In The Dark
Glow In The Dark Party

The Desert
Midnight At The Oasis

Dress Up
Backwards Party
Bad Taste Party
Come As You Were Party
Hat Party
Makeover Party
Oh To Be A Kid Again Party
Puttin' On The Ritz
Toga Party

By Decade
50s Party
60s or 70s Party
80s / New Wave / Punk Rock Party

Fantasy
Fairy Tale Party

Food and Drink
Banana Split Party
Bistro Party
Cookie Exchange
French Cafe Party (Outdoors)
International Cuisine Night Party
Midnight At The Oasis
Picnic Party Swap
Pizza Party
Tea Party for Girls
Wine Tasting Party
The Great Outdoors
Block Party
Find The Party Road Rally
French Cafe Party (Outdoors)
Red Green's Great Outdoors
Scavenger Hunt Party
Survivor Party
Tropical Paradise

Hawaii
Luau For Kids
Tropical Paradise

Holidays
Christmas In July Party
Christmas Party For Kids
The Night Before Christmas
Multiple Holidays Party
Easter Party For Kids
Halloween Party
Halloween Party #2
Holiday/Birthday Party
Pumpkin Party
St. Patrick's Day Party
Thanksgiving Party For Kids
Valentine's Party For Kids
Valentine's Day Dinner Party
My Mushy Valentine's Day Dinner Party

Insects
Butterfly / Caterpillar Party

Just For Kids
Alphabet Party
Backstreet Boys Party
Come As You Are Party
Fairy Party for Kids
Flintstones Party
Harry Potter Party
Little Mermaid Party
Luau For Kids
Pokemon Party
Rock 'N Roll Party

Just For Men
Guy's Night

Monsters
Monster Mash
Money
Donations Wanted Party

Movies
Blockbuster Party

Music
Kid's Rock 'N Roll Party

Mystery and Suspense
Mystery Party

Science
Science Party

The Seasons
Winter Party For Kids
Spring Party For Kids
Summer Party For Kids
Summer Teen Extravaganza
Tropical Paradise
Fall Painting Party For Kids

Sports
Football Party
Superbowl Party

Tasteless Parties
Cheap and Tacky Party
Tacky Party

Transportation
Air Transportation Party
RailRoad Transportation Party
Road Transportation Party
Water Transportation Party

Great Theme list with links

Party Theme Ideas from PartyDirectory.com

Animals Barnyard Party Bird Party Dinosaur Party Mice Party Pink Flamingo Party Teddy Bear Picnic Party Arts and Crafts Arts and Crafts Party Portrait Artist Party The Beach Tropical Paradise Cartoons Scooby Doo Casino Casino Night Construction Construction Cleanup Create, Create, Create Famous Authors' Gathering Party Science Party Share The Memories Party Star In Your Own Video Party In The Dark Glow In The Dark Party The Desert Midnight At The Oasis Dress Up Backwards Party Bad Taste Party Come As You Were Party Hat Party Makeover Party Oh To Be A Kid Again Party Puttin' On The Ritz Toga Party By Decade 50s Party 60s or 70s Party 80s / New Wave / Punk Rock Party Fantasy Fairy Tale Party Food and Drink Banana Split Party Bistro Party Cookie Exchange French Cafe Party (Outdoors) International Cuisine Night Party Midnight At The Oasis Picnic Party Swap Pizza Party Tea Party for Girls Wine Tasting Party

The Great Outdoors Block Party Find The Party Road Rally French Cafe Party (Outdoors) Red Green's Great Outdoors Scavenger Hunt Party Survivor Party Tropical Paradise Hawaii Luau For Kids Tropical Paradise Holidays Christmas In July Party Christmas Party For Kids The Night Before Christmas Multiple Holidays Party Easter Party For Kids Halloween Party Halloween Party #2 Holiday/Birthday Party Pumpkin Party St. Patrick's Day Party Thanksgiving Party For Kids Valentine's Party For Kids Valentine's Day Dinner Party My Mushy Valentine's Day Dinner Party Insects Butterfly / Caterpillar Party Just For Kids Alphabet Party Backstreet Boys Party Come As You Are Party Fairy Party for Kids Flintstones Party Harry Potter Party Little Mermaid Party Luau For Kids Pokemon Party Rock 'N Roll Party Just For Men Guy's Night Monsters Monster Mash

Money Donations Wanted Party Movies Blockbuster Party Music Kid's Rock 'N Roll Party Mystery and Suspense Mystery Party Science Science Party The Seasons Winter Party For Kids Spring Party For Kids Summer Party For Kids Summer Teen Extravaganza Tropical Paradise Fall Painting Party For Kids Sports Football Party Superbowl Party Tasteless Parties Cheap and Tacky Party Tacky Party Transportation Air Transportation Party RailRoad Transportation Party Road Transportation Party Water Transportation Party

Gathering themes for your next gatherings

Geographic: Hawaii
TV: Mission Impossible
Color: Green
Nature: Animals
Cultures: Morrocan

What are some themes you can think of?