Wish to purchase any of these tomatoes as seed?  I am now listing plants for spring delivery in my ebay store Mani Malas Buddhist Prayer Beads
I sell plants and seeds on that site as well.

Feuerwerk, Germany,This indeterminate plant bears medium to large size tomatoes that are very flavorful. Even the meat is tasty and most often all the taste is in the gel around the seeds. It has flavor that can stand up to mayo. The patterns of gold stripes often look like a chrysanthemum firework and it seems no two tomatoes look alike . Makes an interesting addition to summer salads, sandwiches and home made fresh salsa...especially mixed with red, white, yellow, pink, and black tomatoes.

Giant White Oxheart, This indeterminate plant bears huge size tomatoes that are white, flavorful, and heart shaped. There's a nice combination of tang and sweet. Holds up well in sandwiches. Bears well considering it is producing a multitude of very large tomatoes.

Green Sausage This is one of the more odd tomatoes I have grown. Not only is the fruit "different" so are the plants. The plant is definitely a determinate variety which never needed staking except to keep the fruit off the ground and critters from them. It was very prolific bearing lots of 3-4" long fruit. My only problem with it was trying to figure out when it was ripe. It needs to be picked when it is yellowish with green stripes and quite soft. Otherwise, the flavor is that of an unripe tomato. It's novel to cut these up into "coins" to add to a salad. They look pretty too.