Balloon sculptures are intended to be a temporary form of art. Due to the delicate nature of balloons, I cannot guarantee them for any length of time once they leave our care.
My hope is that your sculptures will last at least a week. Many clients report that with proper care, their ballons lasted much longer.
To care for your balloons, keep them cool, keep them away from sunlight, and do not squeeze them.
I add a non-toxic sealant inside displays and gifts (but not party favors/live twisting). This additional step helps preserve them longer than typical twisting balloons.