Here is a full set (front and back) of hair clips that I made for my daughter's Powder (Arcane / League of Legends) Halloween costume this year.
These clips are made to snap together without the need for any glues, hairpins, etc to hold them in place. Just sandwich the hair between them and squeeze the two sides together. They are an extremely tight fit, so you'll want to be sure to keep them square while doing so, or risk breaking them.
Enjoy!
The author marked this model as their own original creation.