Picked up a DSO152 Oscilloscope and it came in a box; here's a nice way to keep it. This one is large enough to hold the “deluxe” version with the nicer probe, so if you skipped that, you could probably shrink this down quite a bit.
You can print the STEP/STL files, or play around with the model in Fusion.
The author remixed this model.
Instance of the box for specific purpose