Sparky and Dodo

Sparky and Dodo are characters I created. Sparky is a "genius" who creates all sorts of inventions that never work very well.
Dodo is Sparky's friend. He is slow at thinking but he can say sensible things. Dodo helps Sparky with his inventions a lot, and gets yelled at by Sparky if anything goes wrong.
Here is a short and uncompleted story that shows what Sparky and Dodo are like.
Sparky Gets Yelled At
Sparky Miller and Dodo Smith were probably the craziest people in Snickerton, people usually said. Everything they did and said was out of the ordinary. For instance, people who saw where Sparky was right now might have fainted if they saw what Sparky was doing.
"This is probably the best Barbie Doll, don't you think, Dodo?" Sparky said in his 3-word-per-second way.
"Well, I don't think so." Dodo said," her hips are too fat."
Sparky was about too answer, but his girlfriend, Mimi Yoodana, suddenly walked into the aisle.
"Sparky! This is wonderful! You finally found the charm of Barbie Dolls. I'll help you find a few! How many do you need?" Mimi gushed.
"Oh hi, Mimi, I need three dolls." Sparky said.
"OK." Mimi moved along the aisle, looking like she was completely in her element. Finally she pulled down three different dolls.
"I got you three dolls. Their names are Erica, Karen, and Rachell." Mimi said.
Sparky walked over to Mimi to take a look at the dolls. Erica had long blonde hair, white skin and gray eyes. Karen had black hair, white skin and violet eyes. It was Rachell who made Sparky's stomach feel queasy. She had short red hair that stuck straight up from her scalp, along with two black eyes and gray skin. What made Sparky feel sick, however was her face. Her face was green as if she had just been seasick and her lips were twisted into an evil grin.
"What the heck?"Sparky sputtered."Thanks Mimi."
"You're welcome. I know Rachell looks awful, but you always have to have a doll in the hospital."
Sparky personally thought you always had to have a doll in the meat grinder, but all he said was "Thanks again, Mimi."
As Sparky, Dodo and Mimi walked out of the toy store ten minutes later, Mimi sighed.
"What's wrong, Mimi?" asked Sparky.
"Would you do me a favor?" Mimi asked.
"Sure. What?"
"Would you fix up my hair tomorrow?"
"Definitely, Mimi." said Sparky. "Come whenever you want."
"see you then."
"Yeah."
Sparky and Dodo hurried home. As soon as they were in the apartment Sparky went to the inventing room with his purchases.
Sparky ripped the packages the dolls were in open. He grabbed Erica first and yanked on her head. It must have been poorly attatched , because it came right off. Sparky set the head on the table he was at and threw Erica's body across the room. Sparky did the same procedure with Karen and Rachell.
The dolls heads soon were attatched to the sprays in the great hair fixer labeled 'hot air' 'water' and 'perfume.'
Mimi arrived at 2:15 the next day.
"Hi!" she said brightly.
"Hi,"said Sparky," come on and I'll get you settled into the hair fixer."
The 'settling in' process of the operation was very simple.