E-max has agreed a week-long promotion at The Entertainer stores throughout the UK.
Kids can take part in a competition to create Moshi characters using the Clay Buddies craft kits from the Spanish toy company.
Each day, The Entertainer staff will pick a winning monster and an overall winner at the end of the week.
Winners will earn themselves a free pack of the Moshi Monsters Clay Buddies while overall winners will get a deluxe pack, an individual pack and a certificate for making the most creative Moshi at thier local store.
Each store across the country will put forward its weekly winner to E-max and The Entertainer to decide the ultimate winner, who will win an iPod, a special certificate and will get their picture featured in the next issue of the Moshi Monsters magazine and on www.moshimonsters.com.