I did a test show of my 2025 summer library show. My show is themed around colors, with an emphasis on the colors of the rainbow. Here’s my view of the show when set up:

The Milson Worth Silk Cabby is something that I put in the show for the color blue. The effect that happens is that “my grandma’s scarf” stretches from about 9 inches to 20 feet long while in my grandma’s scarf box. This prop is an outlier in the show as I don’t use magic prop looking things in the show.
After doing it in the show, it really doesn’t feel right as a prop in the show. I think I may just use a double walled bag. The bonus of that is that it will reduce bulk and weight that I need to move around. The downside is that I don’t get to use a fun, vintage magic prop in my show.
For me a test show about a month before the summer library season is really helpful to identify things that don’t work, or I don’t like in the show. Once the season starts, I don’t have a lot of time to build or find a new prop to replace something that isn’t playing how I hoped it would.
-Louie