A fun way to use up little scraps of patterned paper that you might have in you stash. All you need is paper and a 1" square punch.
To stick them down evenly. Make your base card and measure on the left and top sides of the card in about 5-10 mm. Draw a light pencil mark and start sticking your squares down across the top of the base card using a fine tip glue applicator bottle (Woodware stock these now) filled with PVA glue. Then stick the next row - remember to line the square up with the pencil line. Continue with as many squares as you wish.
I've added a yellow Dahlia, instructions can be found in the floral punch craft books. It's another very popular flower we make in classes (until the girls find out it needs 44 balloons to make up the petals!!!). The leaves are a Leone Em punch FPC6-03, punched from yellow paper.
The greeting from my Essential Birthdays set JGCL519 - I use it all the time! It's stamped onto shrink plastic and makes a cute little greeting.