When describing the form of something, "in the shape of" is a commonly used phrase. However, there are various synonyms that can be used to provide more interesting and descriptive language. "Resembling" is a simple replacement that still conveys the same meaning. "Formed like" adds a bit more specificity to the statement. "Modeled after" implies that the shape was intentionally designed or based on something else. "Configured in the likeness of" is a more formal phrasing. "Having a figure akin to" provides a more poetic rendition. Regardless of which synonym is chosen, it is an excellent way to expand one's vocabulary and add variety to writing.