Im not sure what tips you are looking for. I made a bunch for Christmas with this cart. They turned out great. You have to connect a couple of the cuts to form a whole rosette. When you cut them out there are notches in each one where you fold them accordion style and attaché them together. Im sure there is a video on you tube that will explain this better.
Yes I watched some videos on the sweet tooth boxes cart. It is easy to put together though. It helps if you score everything along the notched lines before assembly. A really good glue helps too.
Good luck I love both those carts.