All a glaze ... soon ...

I've been prepping for glaze and trying to decide on final effects .... it's been so long since I've glazed something I'm struck an indecision phase.  Which effect on what?!

I remember doing things like putting colour glass pieces in pottery for firing ...but I somehow think I'll try and keep it to glaze effects this time.  I have brought a glaze pencil which I will draw with on some of the blank pendant shapes I made.  I have some designs ready in my sketch book ... just wonder if I should of brought more than one as I only have a red coloured one at the moment.

I have so many pendants I can afford to play a bit ... however I do want some of them to work out successfully.  I am hoping to give some of them as Christmas presents.  I've had some people suggest selling them which I guess is a positive sign, but my main aim really is to explore creative outlets ... to get my hands dirty ... not necessarily to make money from it!

I'm being to think that simple designs are the best but the glaze will prove me either right or wrong.  One of my favourite pendant designs is really quite simple:

Pendant - unglazed

However there is a design of a flower which is much more detailed ... (but not hand carved - it's pressed into the clay) but with the right glaze it could come up trumps:

Flower pendant

My biggest dilemma is the cake stand that cracked during firing.  I'm am quite sure this one cracked because it was at the very top of the kiln and once open the cool air hitting it first has resulted in some cracks.  The piece itself is still quite strong, however the cracks a little wider than what I would of liked - I'm not sure if glaze will fill them - and worst of all the cracks have meant that the surface is not level ... at one of the cracks you can feel a drop in height.  Guess this one is an experiment.

Can I fill the cracks with glaze?