To please Bastet, you must attach silk ribbons to yourself, dyed in 2 different colours, and sacrifice an ambrosia of aromatic honey and camel's milk at an altar surrounded with 21 jugs of camel milk.
The 21 jugs of camel milk should be 21 separate piles. You can have more than 21 piles, but not less. While any altar will work, it may be easier to use a designated altar where there will be people to help out.
The option to wear a silk ribbon is available from the "Appearance" submenu. They can be worn in 3 different places--hand, wrist, elbow--and it doesn't matter which 2 locations you choose or which one of your colors you put where.
Ribbons are made from 1 dyed silk cloth each. They 'get dirty' after an hour and are not reusable. The special menu has an option to remove them, which also makes them disappear, no matter how recently you put them on. Acrobatics while wearing them looks great, particularly with moves like Asian Influence and Roundoff, as does Belly Dancing.
A list of people supplying various Bastet items is here.
See also: Test Of Festivals, Determining Festival Requirements, Festival Suppliers, Festival Needs, Festival Schedule, Festival Player Progress, Festival Altars