The Scoops are each made completely of ice cream and sugar. That includes their hair and clothes as well - Those are made from sugar.
Also, their body temperature stays just barely above freezing. (Average temperature for frozen ice cream is 16 Celsius) That's how they keep their viscous shapes.
When a Scoop is young, they have trouble maintaining their shapes and tend to drip everywhere. So be careful when handling one! By the time they are grown though, they can maintain their forms just fine but have the tendency to leave puddles behind if they stand in one place for too long.
A grown-up Scoop is slightly shorter than a human. Males top out around 5' 6" and females are about 5' 2"
Scoops can eat and drink. They thrive on sweets and milk especially.
Here is are the Guidelines for a Scoops growth pattern -
Baby
In the baby stage, Scoops do have the capacity for simple words and phrases. While curious to their surroundings, they usually keep to their bowls as it is dangerous for them to wander too far while they are young.
About half-way through though, they finally gain the stability to be able to move around short distances. Careful though, they still leave a trail of melted ice cream wherever they go.
Child
After a while, a Baby Scoop will be driven to go sleep in a fridge in which they'll transform into a child of about 9 years of age. Now their personality will start to really come through. Also, they now will form an outfit made of sugar (given that they are well-taken care of). As children, they are very active and love to play with both humans and each other. Puddles of melted ice cream in their wake are still found.
Adult
The final stage of Scoop development, after they spend a night in a freezer to finish their growth, ending in the nebulous age range of 18-20. Here their personality is pretty set and some will mellow from their rambunctious childhoods. At this age, they can breed if they so choose. Also, the puddles will finally subside as they take a much more solid shape. Though that might not be the case if they stand in one place for too long...
The shop!
Lollypop13 was kind enough to provide a map of the shop so that everyone can have an idea of it's basic layout
The map
Height Chart
Current guide to how the older Scoops compare to each other.
Adults
Pistachio (same height as Scaramel if you count the other's ears)
Scaramel (if you count his ears. Otherwise, same height as Vanilla)
Vanilla
Strawberry
Chocolate
Mint Chocolate Chip
Children
Rocky Road
Death by Chocolate
Curse Reversed
Peppermint
Buttercrisp
Brownie
Raspberry
Tutti Frutti
Festivus
Bloodbath
Birthday Cake
Cotton Candy
Bubblegum
Blueberry