One of Max fears are snakes. (He is very afraid of clowns too but it already got covered in this post)

Swallowing he pointed his wand at the boggart and shouted "R-R-R-Riddukulus"
All the snakes that covered his body turned into colorful paper streamers.
Max O´Conner/Slytherin

Sadie is afraid of fire nymphs!!
[IMG]http://i19.photobucket.com/albums/b174/theatticbox/boggarts1.png[/IMG]
But she has a plan for this boggart: turn them into fireworks!
[IMG]http://i19.photobucket.com/albums/b174/theatticbox/boggarts2.png[/IMG]

Fear of scary beings creeping up on you in the dark.
After casting Riddikulus it would turn in to three cute kittens playing with a ball of yarn.
Ravenclaw!
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Hannah felt a mouse...dear gosh I hope that's a mouse and not something with its face stitched to it! She said Riddikulus pointing her wand at it and it flew onto her shoulder. It had turned into a parrot. She sighed a sign of relief.
Hannah, Ravenclaw.

Megan is deathly afraid of Angel Statues.
Using the Riddikulous spell she would turn the creeper into an explosion of angel wings.

Megan Belcrox/Hufflepuff
[Center][I]Chibi by [/i] [/center]

One thing that Emmy fears is the depths of the ocean and what might be lurking there. She fears scary, anthropomorphic beasts that would be ready to capture and/or eat her should she venture into the open or deep water.
Upon casting "Riddikulus!", her scary shark monster suddenly loses all its teeth and grabs frantically at its mouth, but all it has left are its gums!

🦋
Ravenna's greatest fear is werewolves(when they are transformed, not when they are human, of course)
Shouting "riddikulus!" A red ball appears out of nowhere, and bounces towards the wolf, who pounces happily onto it, wagging his tail...friendly as a puppy dog
Hunger, hufflepuff
[Center] CW Shop||https://subeta.net/user_shops.php/shop/26066">CW for sale/trade Style File [/center]
Cherry of Slytherin has dealt with things. Scary things, mean things. So she was quite skeptical of boggarts~
Until she was face to face with one.
And it turned into...but it couldn't be...but it was. It was herself! But she was absolutely mad.

And she was afraid. So frightened was she, that she blacked out, and had to take remedial lessons. It was quite a while before her "Riddikulus" transformed the insane version of herself into something laughable: her two-year-old silly self playing dress-up.
[img align=left]http://i1156.photobucket.com/albums/p562/pikachuemerald/Subeta/BoggartInferi_zps92buuvlf.png[/img] Since the moment she learned of the sport, Lyn eagerly awaited for the Quidditch World Cup. So when her family decided to attend the 2014 games, she couldn't help but leap and scream in excitement. The opening ceremony started off as usual, a wonderful showcase by the host followed by team introductions (she had to admit watching it in person was way better than having to deal with the commentated coverage from her Witch's glass).
In an instant, however, that excitement became sheer terror as piercing screams sounded around the arena. She was only able to catch a glance as a swarm of Inferi rushed the cheering crowds seemingly out of nowhere, but it was enough to leave her petrified... Lyn shook her head, trying her best to rid her mind of the memory. Taking a deep breath, she fixed her stance as her Boggart crawl out into her line of vision.
"Riddikulus!"
The Inferius suddenly went into bloom, green wrapping around its body before a set of petals shot out from behind its head and neck.
Lyn Hale, Gryffindor
"The points for this challenge have been awarded! Well done everyone! You have all done brilliantly with your Ridikkulus charms!"
Slytherin Riptide: 10 Merlinpendragon: 10 Garrett: 10 Fable: 10 Asylum: 10 Anne: 10 Ellie: 10 Italia: 10 furiousflamewolf: 10 QqQ: 10 CSM: 10
Ravenclaw Raven: 10 Keliora: 10 Pengy: 10 Just2b: 10 Literature: 10 Canidae: 10
Gryffindor Chook: 10 Paddy: 10 Jem: 10 Deutschland: 10 Flyingkat: 10
Hufflepuff Luck: 10 Tardis: 10 Mary: 10 Megu: 10 Alewiina: 10 Hunger: 10