I want to DIY this

@IDiyeverything

@EmotionsListener i know you're a creative type. do you happen to know?

Not sure how this thread got lost in my replying work, so my apologies for the delay.

There are actually a lot of different ways to do this sort of magic reveal, some use  heat, others chemical reactions, or even just simple indents or resist techniques.

So if you want to use the heat method, you can use a cotton swab to write the invisible message with lemon juice, or milk. Trouble with heat method is that it can take a lot of heat to reveal the message and the paper can sometimes catch fire while trying to reveal the message, so  while these might be some of the most invisible methods they may not be the best option.

With chemical reactions you, a simple one uses baking soda and grape juice. So you would mix the baking soda with water and then use a cotton swab to write the message, allow it to dry, then paint over with grape juice to reveal.

An even easier one, but perhaps less invisible, is to use a white wax crayon or waxy pencil crayon to write the message, pressing firmly to ensure a good layer of wax is applied, then you can use any water color paint to paint over and reveal the message.

Or perhaps the simplest yet, the good old pencil indentation, place 2 sheets of paper together and write the message on the first pressing firmly so that it leaves an indentation of the words on the second sheet.  This can be revealed by lightly shading over the area with the side of the pencil.

If you have a black light you can even  use things like laundry soap, but there are many ways to create mystery messages, hopefully you were able to find one in time given my reply was so late in coming.