Practical glass markers in less than optimal color choice

I can remember the beautiful glass markers my grandma me yet. The grapes were in different colors of glass. As a child I found these delicate glass pendant totally fascinating. Of course, these followers are at least 60 years old with safety - nowadays glass markers are mostly just made of plastic or silicone.

Looking for a gift this glass markers appeared to me as practical. Unfortunately, the colors are not too felicitous, Pink, Red and Orange differ - just in subdued lighting - not very good from each other. Here would have been much more advantageous than variant green and / or white. In this respect, the set is not quite perfect, for the price for lack of better alternative but okay.