The finials should not be glued in at all, unless a previous owner of the house decided to do this so they wouldn't go missing.
They usually just slot snugly into a hole which makes them very easy to take out without causing any damage.
![Smiley :)](http://www.playmofriends.com/forum/Smileys/classic/smiley.gif)
One of the great things about Playmobil is that they make most sets easy to disassemble and reassemble so you can store them away again in the original boxes whenever you wish.
![Cool 8-)](http://www.playmofriends.com/forum/Smileys/classic/cool.gif)
If you can't get gold finials, you could probably paint the yellow-tan ones with a model paint such as Revell or Humbrol. You might not find the exact same shade, but it would help them to look more similar to the original ones.