When I was a kid, I had a couple of aunts who faithfully sent my brothers and me cards for various holidays and our birthdays. When I became an aunt to several kiddos when J and I married (and now our family has grown even more) I wanted to be that aunt, too. So I made my cards for the kids in my family and a couple for friends’ kids.
I used three small stamps that I bought at Michaels for $1.50 each, and a tiny candy stamp that came in a set (and I don’t remember where I got it.) These are the stamps:
I used a black ink pad and when it didn’t work perfectly each time, I filled in the rest with an ultra-fine point black marker/pen. That was a huge pain and I have got to get better at stamping.
On the front of the card, I printed the words “Happy Halloween!” in orange ink. I searched the internet for “free Halloween fonts” and I recommend you do the same because there are a lot of good ones out there! On the inside, I used another stamp and wrote my message in orange and green for pumpkin colors. 
Lastly, on the back flap of the envelope, I drew a little orange and green pumpkin. That way the kids (and their parents) will have a hint about what the card is for!
Do you make cards for kids? What do your Halloween cards look like?
For the Love of Organization 