No, do not glue them in. They are not supposed to be glued in. Believe it or not, I'm old enough to remember those things. They are kept separate and they were always included with different colored bulbs to change the look up. You could put the bulbs in a plastic bag and them surround the bag with bubble wrap to secure them.
IF some are glued in, I would leave them. Just, whoever buys it, just let them know it came to you that way and it is not supposed to be that way.
Good luck.