This is one of the new ones, sent off to Karen I. Interestingly, the scanner 'added' all those wavy lines - it doesn't look like that in person.
I thought this one would be perfect for the Star Spangled Banner stamp. Like the JOhnny Cash stamp, the black background lets it blend nicely against a dark envelope.
I matched the address font and color as closely as I could to the stamp, but the color was a little too pale on the (semi)transparent label. Also, these labels usually work great, but in this case completely obscured the envelope color.
Not the perfect liner effect, but I did like the light bulbs here.
And finally, the back. I like the way that half the firework spilled over.