This is an oldie and I had not made one in several years - but I remember when they were popular and fun to make. Reminds me of the bandana handkerchief my hubby usually has in his back pocket. He uses his for a sweat band, neck cooler in hot weather, and a handkerchief in cold weather.
Your supplies will be: Card stock - base cardstock A2 size, and one color to stamp on which needs to be a dark color, red, purple, dk. green, blue etc. and a layering colors, Versafine black Ink, ribbon, stylus, white acrylic paint and a small plate or container to pour some white pain into. And your stamps. I used:
Stamp images in black Versafine ink using firm pressure to get good image, just stamp randomly so that it is pleasing to the eye.
Using either end of stylus - (or toothpick, empty ballpoint pen etc) tip of stylus in white paint acrylic paint and add white dots, again random so that it is pleasing to the eye. I have two different sizes of stylus so I was able to make varying sizes of dots.
You can do as much or as little as you like and if you wish do some random dots between images.
Finish card as you wish - the solid flower images work so well with this technique but I also found that the open small leaves worked well. Have fun.