"Well I know I would, but the Deputy Headmaster said not to until we got to Hogwarts. And besides, it's bound to be cool, so I wanted to leave it for last."

"Yeah. What else do you have left, or is it wand time?" 

"After books was Potions ingredients and cauldron and last was wand."

"I should still get parchment, we can meet at the wand shop." 

"Okay! See you in a bit!"

And in a bit, Scott and his mother are waiting to be shown wands. 

And Sadde and his mother show up there, too. "Heya."

"Hey. Did you two find anything good?" 

Scott is too busy to talk, since he's currently surrounded by flying measuring tape. 

"Why is there flying measuring tape around you?"

"Standard ingredients," Laura answers, pushing a cart with their purchases (cage with Richard on top) inside.

The small, elderly man with intense, glittering eyes turns his gaze upon Sadde.

"I must measure the boy, so I know which wands are most likely to take to him."  

"Size matters?" he wonders. "But what if we don't grow much, or grow much more than expected?"

"I need to measure a witch or wizard so I can have a true picture of who he or she is. Only then can I offer them the right wand. Wands of a certain length will prefer wielders of a certain height- but also a certain bombast. For example, this young man is shorter than average for his age, and has very little force of personality. A shorter wand, with more restricted motion, will suit him nicely." 

"So...do I get to look at wands now?"

"Yes, of course."

He examines his stock, and with a murmured "hmm", offers Scott a box.

"Just wave it once, while I take a look at your friend." 

He walks over slowly to Sadde, peering down at him.

Sadde beams.

Scott waves the wand...

Nope.

Ollivander examines Sadde with a thoughtful frown.

"I expect you'll be tricky," he sighs, and heads to the back. 

It takes him a few minutes to return with a box for Sadde.

"A single wave, nothing too complicated." 

Using his own wand, he absent-mindedly levitates a box towards Scott. 

Wave?

There's an excessively loud crack and a flash of bright light.

"No, no, that won't do."

He rushes to find Sadde another box.

"Hazel, nine inches, dragon heartstring, very pliable."

He wordlessly levitates another wand toward Scott. 

This one doesn't do anything either.

Scott looks mildly discouraged.

His mother, less mildly so.

"But I liked the explosion," he pouts, but sighs and accepts the new wand. Before waving, he looks at Scott and pats him on the back. "It'll be fine, you'll find a good one soon!"

Wave?