As a crafty sort of adult, I have my own collection of buttons, made up of hand-me-downs from my mother, huge lots of buttons from estate sales, and a treasured few paid-too-much for vintage buttons of particular beauty. If I make something for you, and I use one of these particularly beautiful buttons to emblish it, you can be sure I love you very much.
Of course Etsy is a treasure trove of buttons, one I love to run my virtual fingers through.
Like this simple collection of pretty vintage buttons from LillianOlive:

Vintage button as necklace by WhimsyHouse:

"Violet Hoopla," a button, felted cashmere, and embroidery collage by bomchelle:

Antique crochet and vintage buttons on a mustard linen pillow by vintagedesignstudio:

Hip and lovely vintage button brooches by runamok:

Sweet needlecase with vintage buttons by JennMaruskaDesign (dear family, bookmark this for mother's day, please):
Gorgeous wintery mini-wreath embellished with buttons, by ravennagirls:
Vintage button bobbypins (that I wish my daughter would allow in her hair) from annatillettdesigns:

Button and paper embellishments by chocolatecupcake:

My personal favorite in this grouping, "Buttons," a 5x5 print from LolasRoom:
And a necklace celebrating the button (which I got for Christmas, but in silver, and which I very much treasure) from luxedeluxe:
Enjoy cultivating your own button love!