I used a Mavica once that had a slot for 3.5" floppy disks. For event photography I had to have a box of ten in my bag so I could swap them out. That 1.2 mega pixel sensor really churned through the memory.
Wikipedia article here:
Sony Mavica - Wikipedia, the free encyclopedia
In part says:
The later Digital Mavicas recorded onto 3.5" 1.4 MiB 2HD floppy disks in computer-readable DOS FAT12 format, a feature that made them very popular in the North American market. With the evolution of consumer digital camera resolution (megapixels), the advent of the USB interface and the rise of high-capacity storage media, Mavicas started to offer other alternatives for recording images: the floppy-disk (FD) Mavicas began to be Memory Stick compatible (initially through a Memory Stick Floppy Disk adapter, but ultimately through a dedicated Memory Stick slot), and a new CD Mavica series — which used 8 cm CD-R/CD-RW media — was released in 2000.