Guess what is in the bag?

Your  guess is as good as ours! 
I am not a whizz with special  effects, so apologies to those Blippers who can do all kinds of wondrous things ;-) 
This is however all my own work, setting up the camera for the timed shot. 
All will be revealed eventually......on Christmas Day. 
The two people who ordered it live in the States,  and I sent them a 
photo to say it had arrived from Amazon.
One of them had a good laugh and said that they had no idea why it 
was ginormous! . 
But kept the secret of the  contents.

I am off out shortly delivering more presents. It is a beautifully sunny day, And very mild.