I liked the idea of having students create fake Instagram posts but really hadn't got past the "idea" phase. Last week in my Classy Graphics course with Tony Vincent he had us working with pictures and gave us free reign on the assignment. I used several of the techniques he taught us to FINALLY create a sample Instagram post that could be easily duplicated by students.
I used Google Drawings, which is an under utilized tool in our district, to create the final product. This is a great activity to showcase several "how to's" in Google Drawings. I also used Pixlr to edit a photo of myself to remove the background I was standing in front of.
I made a "how to" video as well as the simple screen shot "how to". The video is a little more in-depth for any teacher wanting to try it out first. If you wanted students to make an Instagram post you might want to make a more specific video for your students to reference back to, particularly if this is an independent assignment. I used Screen Cast-o-Matic to make my tutorial. The free version is enough for most teachers (just sign in to make an account and you can download the software...if you aren't allowed to download software to your district device you skip the download part and use the software from the site).
I used Google Images to find what I need in a separate window but you can also search for images within Google Drawings. I didn't mention it in the video but wanted to mention it here.
If you try this activity with students I would love to see any finished pictures!