Well, if you can’t tell from the photo above, I failed. I didn’t fail at the printable I made. In fact, I think it was turning out pretty cute until I quit. I failed at the invisible ink part.
I did invisible ink all the time when I was little. My sister and I, or my friends and I, would write with “invisible ink” then hold the paper up to a light bulb and watch the message appear. I’m not sure what my mom used as ink when we were younger but when I looked it up online, people said anything from vinegar to lemon juice to milk.
I tried vinegar and milk out on a piece of paper to see which one to recommend to my readers (we didn’t have any lemon juice). I wrote the word “test” out on paper, let it dry then held it up to a light bulb. Nothing happened. I figured it was just because our florescent or LED light bulbs don’t get as hot as the old incandescent or tungsten light bulbs. So I tried ironing the paper to see if the message would come through…nothing. UGH!
I give up. Maybe lemon juice will work better, maybe not, but I’m not going to put up a printable that doesn’t work very easy. I don’t want to disappoint kids who think they’re going to get/give these awesome invisible ink Valentines only to have them not work. I failed and I admit it.
Have you done invisible ink with your kids? What did you use? How did it work?