Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
While VMware Player is not designed to create virtual machines from scratch, other tools can help you to build your own VMs in a matter of minutes. You could use VMware's free VMware Server software, but it's overkill if you only need a quick-and-dirty way to build a VM. Instead, consider VMX Builder, an easy-to-use desktop tool for creating VMware virtual machines.
To demonstrate VMX Builder's capabilities, let's create an Ubuntu 6.10 (Edgy Eft) VM.
First, you have to install VMX builder. Point your browser to the VMware Utilities Homepage and download two packages: Core files (the download link is at the top of the page) and VMX Builder. Install the Core files packages first and VMX Builder after that. You also need to download the ISO image of Ubuntu 6.10 from Ubuntu's Web site.