There are several types of paperweight each having particular methods for creation. A google search for "you tube glass paperweight" will find several videos showing some of the processes.
There is a 10 minute video
uploaded to You Tube by "jamesallowayartglass" showing the making of a surface decorated swirl weight, but there is no commentary on what the processes are - and sadly there is no view of the actual, cooled finished item. The video has a title of "Hand Blown Glass Paperweight Demonstration" which illustrates something I find rather odd but which is used quite often in recent times ... what is made is a solid weight, with abosultely no "blowing", but presented under a title of "hand blown"!
Perhaps better - and this time the title "hand blown" is a correct description - is this video showing Wint Harris at work
. This one has overlaid text stating the processes.
Good detail of making lampworked /torchworked floral elements and their encasement in a weight can be seen in this Corning Museum of Glass video
Anyone know of a decent online video showing the making of a millefiori weight??