"envelope"

"astronauts in space"

"Haunted circus"

"Haunted lighthouse"

"Viking with a battle axe"

"Viking warrior with tattoos"

"Steampunk clockwork machine"

"Wizard with a magic staff"

"Werewolf under a full moon"

"Gargoyle on a rooftop"

"Astronaut on the moon"

"cheerful princess in a sparkly dress"

"Troll with a snarl"

"Siren singing on a rock"

"Treasure chest with gold coins"