You could have her paint the green (or different shades of green) and glue them around a paper plate cutout to make a wreath (with some red pompoms or other decorations).
Or glue a bunch of them down on sturdy paper, let dry, then put another paper over top to do crayon rubbings.
Or glue them printed side down to make an igloo (we did this with stickers once and it was a hit).
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Re: craft idea for leftover business cards?
You could have her paint the green (or different shades of green) and glue them around a paper plate cutout to make a wreath (with some red pompoms or other decorations).
Or glue a bunch of them down on sturdy paper, let dry, then put another paper over top to do crayon rubbings.
Or glue them printed side down to make an igloo (we did this with stickers once and it was a hit).