Something for the long hair...

This kind of looks like a bow tie on it's side. You really need longer hair to do this - but you may be able to simplify it somehow & use it for short, also.
Before I dried her hair, I put Garnier Fructise's Mousse in it to help make it not so soft after it was dried. Then I teased her hair just a bit with a comb right in the front to give it a little more volume & then pinned back:
Bring the rest into a low pony & don't pull the hair all the way thru (but don't pull too much - I just left as small a loop as I could). Secure that with another elastic so you don't have hair falling out of it.
The pony tail that is sticking out, begin pinning in loops about the same size & loop below.
Make it look as even as possible & use your fingers to spread the hair & hide any openings. That hair that is left over - you are going to wrap around the elastic to hide it. I spray it as I go, then secure it with a pin & it should stick good for you all day.
Spray to hold & you are finished. This looks really cute for church or with a dress - it fancies it up just a bit.
side view

Fun Updo!

Start by making a very far left part on the top of her hair pull the hair down to her ear. Then twist the hair

Once the hair is twisted secure it with an elastic into a small pony tail at the bottom of her hair.
(I always do a diagonal part on the bottom of her hair also you will have 2 of these small ponytails at the bottom of her hair when finished.)
Do this step on both sides of her head one will be bigger with a far side part and the other will be done with a small amount on the other side.

Then take the remaining hair and pull it into a ponytail.

After the hair is in a ponytail then very last don't pull the hair all the way through and leave the ends still in the ponytail.

Toddler Pull Thru Headband

Because of how thin and fine her hair is I only did 4 pull thrus across the front of her head.
Below shows one of these

Continue across the front of her hair line to make a headband.

Below is a picture of the top of her head. This is simple quick and looks very cute.