Postcards in general are popular as invitations to events but with metallic foil postcards, you get to dazzle your guests quite a bit. These are absolutely perfect especially for kids' parties because they'll love the shimmering kaleidoscope colors. They would also be great for corporate events, dinners and entertainment events if you're aiming for a bold look. There are unlimited multiple foil colours to choose from, you could also make them glossier with 16 pt Hi Gloss UV and rounded corners if you prefer. With low minimums of just 500, these cards are worth every penny.