1. Postcards: €1-€2 each
2. Keychains: €3-€5 each
3. Magnets: €2-€4 each
4. T-shirts: €15-€25 each
5. Sweaters: €30-€60 each
6. Crystal: €10-€50 each
7. Celtic Jewelry: €20-€100 each
8. Traditional Irish Music: €10-€20 per CD
9. Irish Whiskey: €20-€50 per bottle
10. Claddagh Rings: €30-€100 each
Keep in mind that these prices are just rough estimates and can vary widely depending on the specific item, brand, and shop where you purchase it. For a more accurate estimate, it's best to consult a local souvenir shop or online retailer that specializes in Irish souvenirs.