DIY back patch

Aside from painting, I haven't been that creative this summer. The idea of sitting in the backyard, reading a book in the sun has been much more appealing to me that dragging out all my supplies. However, I had a request!
As I mentioned before, my boyfriend gets a bunch of band t-shirts. Sometimes they don't fit and I get them, but last summer between the two of us, we figured out that we could keep the shirts and turn them into patches. So I was asked if I could put this t-shirt on this sweatshirt. It was pretty easy, and the extent of my sewing skills, but enjoyable to sit and watch Project Runway and sew!

I had my self healing, green cutting mat. A rotary cutter- if you don't have one, get one! I love it! I also had a t-square and your usually sewing notions- needle, thread and pins.

First I squared off the logo, keeping even on all sides. This is where the combo of a rotary cutter, t-square and mat make things super easy!

Next, I centered the logo.
I am a sloppy seamstress so I then pinned the logo before baste stitching all around.
Since the edges of the t-shirt are unfinished, I whip stitched all the way around. That was the tedious step, but once this is washed again, you don't want it to fray.
I have used iron adhesive before, but for pieces this big, it is really uncomfortable. There's not a lot of give.
This was a simple solution, but I get great pleasure knowing that it is pretty unique. I am even more thrilled when my boyfriend comes home from shows and tells me he got complimented on his sweatshirt. I know, I am a dork and I own it!

T-Shirts

This is not a lesson plan... yet.
Over the last few months, I have acquired a good handful of band t-shirts, but I have not gone to see a single one perform!
My boyfriend is in a local band and frequently purchases records online from other bands and various artists. He recently returned from a few shows in the mid- Atlantic and came back with a bunch of shirts from a swap. Sometimes the bands that send records will send some merch as a bonus. That's how I got the two white shirts. I also inherited the top left shirt from the swap since it shrunk. Plus, who can resit Grumpy Cat? I got some bonus points for knowing that the image references another album cover too. I hardly have the encyclopedia brain my boyfriend has for music, books and movies. That was a huge score on my part!
The Mean Jeans shirt at the top right very much reminds me of one of my students' style and got me thinking. I wonder if somehow I could turn this into a long term sketch book assignment or lesson about illustration and marketing. I am sure my high school kids would be totally into it.
To be fair, the Wolves and the Radio shirt at the bottom right is mine. However, it doesn't fit,  I just wanted to support the band. Since I bought it, the guys have gone their separate ways, but are playing a show together next weekend and I am super excited.

So what do you think?
Sketchbook assignment
Illustration lesson
Screen printing with an art two or art club level
Other ideas?