Dollar Store Cake Dome

Sometimes you make (or buy) a nice big cake that deserves a regular size cake dome.  Sometimes you make a lot of cookies that you can pile up high and also deserve a regular size cake dome. 
But sometimes, you grab a cookie every time you walk by them and by the time company comes you only have a few sad remains of the cornicupia you had hoped to offer them and putting the cake dome on top only screams your guilt and cheapness:

pathetic, right?

Okay, dollar store to the rescue!  Now those of you who have heard me go on my anti-dollar store rants, don't cry fie.  This is not hypocrisy.  Repeat after me: it is okay to go to the dollar store to buy what you were going to buy from a regular store anyway.  My quarrel is not with thrift, but with buying unnecessary items just because they are cheap.
Now, where was I...Right! okay, so now that you have my permission (collective sigh of relief .... was that eye-rolling I caught? ) head to the dollar store and pick up a glass cereal bowl and some sort of knob.  The only criteria is that it have a flat top (which becomes the bottom).  I used an actual knob because I found two for about a buck, but get crafty, you can use a number of other things

Decorate the bowl however you like: glass etching, use a paint pen, decoupage, etc...  I happened to have these vintage Parisian label stickers just lying around (hehehe) and since I still love (almost all) things French despite their stupid headscarf ban, I slapped it on and sealed it with modpodge.  Then I hot glue gunned the knob right to the top (obviously without the screw) and ... voila!:

You would never know that most of your intended iced brownie buttons with crushed peppermints ended up as two hours on my treadmill!

Note: Many readers have suggested an alternative to glue-gunning; for extra security, try crazy glue, gorilla glue, repair putty, or silicone.