Abstract: The present disclosure relates to menstrual fluid simulant compositions that mimic the properties of real menstrual fluid, where the menstrual fluid simulant compositions comprise vesicle dispersions of quaternary ammonium compounds and linear polymers. The present disclosure also relates to related methods and uses.

Abstract: An interactive package for a writing instrument to allow a user to grip the writing instrument when the writing instrument is mounted in the package. The interactive package contains a back support connected with a mount, the mount having indentations to mount the writing instrument away from the back support so that the writing instrument appears to float inside the interactive package. An outer shell connects with the back support and surrounds the mount to create a compartment. Two openings in the outer shell allow a user to insert a finger and thumb through the respective openings to grip the writing instrument without touching any portion of the package. The user can then test the weight, look, and feel of the writing instrument while the writing instrument remains protected in the enclosure.