not susie but found this google page that might help

Here is a link that might be useful: sewing t tops for pajamas - Google Search

I was not the one that posted pictures but I do make them. I use a simple top and bottom pattern. I usually make the bottom out of fleece, flannel or thermal type knits. Sometimes I buy a t-ahirt that matches the bottom. My grandson loves them. I make the top out of flannel to match sometimes. I found the cutiest prints in the thermal knit. One was blue with greem alligators on it and the other one was navy with red lobsters printed. My grandson loved them. I watch the red tag fabrics in our Joanns fabric store.

The girl pj's I make are made from mens ( or boys ) white
t shirts and white boxer shorts. I add eyelet to the bottom of the sleeves and the bottom of the shirt. Also sew eyelet to the bottom of the boxers. I sew the flap shut on the boxers and add small bows or buttons to the flap. I have also sewn a piece of eyelet in the flap..
I applique something on the shirt and a smaller version on the leg of the boxers.. I have even put their name running lengthwise on the shirt. I think I have made every college in Indiana. I can't begin to tell you how many I made.. I bought plain small paper bags with the handles and added the same thing that I put on the pj's and gave many of them as gifts.

I made one for a small girl with three ice cream cones across the front. One chocolate, one strawberry and one mint looking. The cones were a tan small print. If I remember she was to small for the boxers so I made a nightshirt from the t shirt.. I put little bows on the sleeves..

Hope this has helped....

Susie