Grand Cayman is famous for their Tortuga Rum Cake. Well preserved good sub- for the old fruit cake! Cozumel it's Silver and marble chess boards. Make sure the silver pieces are genuine. Don't buy from any vendor wearing long sleeves in 85 degree heat or with a towel over the arm. Tablecoths, hammocks and shirts all probably will shrink very badly. Negotiate, negotiate, negotiate in Mexicao.
Onyx is very inexpensive in Cozumel - great place to pick it up. Kahlua liqueur was on $9.95 a liter when we were last there. Great price!
Tortuga rum and rum cakes about the only things in Grand Cayman. Their dollar is worth more than American $ and prices tend to be higher.
Grand Cayman is not a real shopping mecca like St. Thomas or Aruba. Besides a tee shirt (or sending a post card from Hell,
town of Hell that is) there is really nothing that is a must have.
Cozumel has three things to look for. First is Onyx. Chess sets and candle stix ,very popular. Shop around a bit before you buy.
We hauled back 3 chess sets and a set of candle sticks when last there. VERY inexpensive,but we now had a 30 pound suit case to
Second is cotton goods. Most popular Mexican woven rugs. Cheap
is not the word. Keep in mind they will shrink to the size of a band aid once washed.But they are a fun souvenir.
Third is silver. Do not spend a lot of money on this . Keep in mind you will get what you pay for . You will not be purhasing heirloom bracelets at 3 for $10.
Go to the beach on Grand Cayman, swim and snorkel.
Don't devote more than an hour or two to shopping in Cozumel.
Take an Island tour. One that includes a drive around the island,
a stop at the ruins and a beach stop takes up an afternoon
and lets you see a lot more than souvenir shops and bars in