Sorry never made one,
heres a link to some that maybe can give you some ideas, hope it helps! wouldnt let me post the site said it was spam, so just do a search for birthday survival kits, quite a few will come up.
oddie

Here's one list of items I found - maybe you can use it as a starting place?
1.Money: So you have some to burn
2.Confetti- Don't go to pieces just because you are another year older
3.Crayon-So you can have a bright and colorful day
4.Candle: Remember not to burn it at both ends
5.Balloon - Let the air out of all your worries
6.Candy- May your special day be as sweet as you are
7.Streamers to decorate your soul
8.A party horn --so you can toot your own
9.A party top hat--cause you're tops
10.A teensy gift that is wrapped with the "gift" poem on it
11.A piece of wrapping paper-so you can wrap yourself in surprises
12.Cake sprinkles--to shower you with a rainbow of happiness
13.A sugar rose-to remind you to stop and smell the roses along the way
14.Matches -to light your birthday candle or your fire!
15.An ice cream cone--to savor the moment (perhaps make a satin ice-cream scoop to put in it!)
16.A cup cake--so you can have your cake and eat it too

Submitted by Birdiekitty

You could also put in a marble or a small bag of them, to replace the ones she's lost.
There are so many options, if you can google survival kits you'll get lots of ideas for other items to add - maybe try and make it 40 items?
Hope this is helpful to you.
Suzan J