I have been using the Crafters Companion stamp and die set called 'Winter View' to make and teach classes with.
This is a great set that includes 2 clear stamps, an embossing folder and metal die. I made two cards of which one is A5 size and the other a normal A6 size. The Christmas tree on the inside of the A5 card is just stamped whereas the other Christmas tree has been coloured with a mixture of pencils, markers and metallic gel pens.
I used a Cottage Cutz Die to create the Poinsettia embellishment on the second card. The brick embossing folder is brilliant. It is a large size and fits a card mat even for the A5 card. I think it looks great with normal brick colours but was pleasantly surprised how good it turned out using non traditional colours.
These sets are only $25 on the website.