I'm going a bit off the masonic Jurisprudence issue and into my opinion on decorated aprons.
I'm by no means a wealthy individual, however I have quiet a few friends who have artistic abilities. I would love the ability to lay out what I want and have a friend do it on a Apron. To me it would be my expression of highlights in my masonic walk using esoteric symbols. Not sure the apron would ever be finished though because I would want things added as time went on and different aspects of my Masonic Journey came into focus.
This apron would probably only be worn for special events and all other events would be the standard white apron. When I say special events I'm referring to cornerstones, scholarships, community builder award, and perhaps to events such as the annual Alamo, Masonic Oak, etc. Here is why I would limit it to those events. The events involving people other then Masons, this would open up a dialogue while I may not be able to address all the questions in depth I could answer in a manner to spark them to look more fully into Masonry. Such as when I reflect upon this symbol it reminds me that in my daily life I should be patient or this is due to all the plentiful things the Supreme Grand Architect has blessed me with in my life and so forth. For closed special Masonic events it might spark a brother who is just going through his journey without seeing the full scope of Masonry to dig a bit deeper into the symbolic meanings. To often we are to busy learning the work and doing the work to spend time in philosophical discussions expanding our horizons. I would not wear this apron all the time for several reasons. I would not think that during a degree it would be beneficial to the candidate/brother. It could be a distraction and might interfere with him being able to see the beauties in the degree at hand. I would also limit it so would not become a standard sight, thus loosing the reflection aspect. Plus with the time and energy that would be spent in the creation of it I wouldn't want it to become worn and ill kept.
This is merely my thoughts on the benefits of apron decorations, and I would have no issue with decorations as long as they are masonic in symbolism. Most things are good in their respective time and place, all things have their downfalls too.