mysql> create table atest ( s set ('натуральная кожа','искусственная кожа','яяя'));
Query OK,  0  rows affected ( 0 . 03  sec)

mysql> show create table atest;
+ -------+------------------------------------------------------------------------------------------------------------+
 
| Table | Create Table                                                                                               |
+ -------+------------------------------------------------------------------------------------------------------------+
 
| atest | CREATE TABLE `atest` (
  `s` set('натуральная кожа','искусственная кожа','яяя') default NULL
) TYPE=MyISAM |
+ -------+------------------------------------------------------------------------------------------------------------+
 
 1  row in set ( 0 . 00  sec)

mysql> insert into atest values('яяя');
Query OK,  1  row affected ( 0 . 00  sec)

mysql> insert into atest values('натуральная кожа');
Query OK,  1  row affected ( 0 . 00  sec)

mysql> select * from atest;
+ ------------------+
 
| s                |
+ ------------------+
 
| яяя              |
| натуральная кожа |
+ ------------------+
 
 2  rows in set ( 0 . 02  sec)

mysql>