oh ok

so with a good description you can imagine it.

the piebald is a very visual morph, parts of the snake are completely white (and it is a very pure white) but it has areas where it shows normal coloration, the head also has normal color. with sharp edges seperating the two. imagine a completely white snake, now give it a normal colored head, and then take some circular pieces of paper of different size and glue them on the back of the snake, roll them down the sides. the areas where the hypothetical paper would be get outlines, and get filled with normal color and patterning. its quite random, some are 90% white leaving pretty much only the head, some are only 10% white, many are inbetween. You cannot go wrong with a 50% white pied.

The ivory (super form of yellowbelly) is a nearly completely white snake with dark eyes and often a faint yellow stripe right above the spine. they have a bit of light grey on the top of the head and the sides of the head.

Bumble bee is harder to describe. it features black, yellow, and white. Basically we have a pattern morph, spider, that reduces much of the pattern, so we get black near the spine, sometimes two lines of black, sometimes one very wiggly line. and from these black areas, you have some black lines going vertically down the sides. between and around that you have yellow, which often turns into light brown as they age. in the lower half of the body (assuming the snake is horizontal, so i mean, closer to the belly) you get some white coming in and replacing some of the yellow. The head looks quite unusual, with some symmetrical pattern of black and yellow on top of the head. its a combination of spider, which changes the pattern, and pastel, which brightens up the colors and replaces much of the brown with yellow.

stinger bee and honey bee and other things like queen bee are variations on this theme, with different genes involved, but always with spider.

oh, i didnt notice your post where you say 450 dollars is the limit. a bumble bee is definitively lower than 450, im not so sure about piebald or ivory, i think they are still a bit higher. Others know the prices better than i do.

Firefly or black pewter would be in your price range as well, they are also quite visual since they are also 2-gene combinations.