A simple flask or an elaborate flask

I have a school conference to attend to and my teacher assigned me to look for gifts that will be used as freebies for the attending delegates and guests. Our school wants to give cool items to those who will attend the conference. We really want to make a good impression. That’s why we try to be very accommodating as much as possible. We will provide excellent facilities for the delegates and great hospitality. Even the budget for the food is high, so the guests can expect superb local cuisines and specialty. It is the first time that our school will have the privilege to host this kind of event. So we really want to make it a memorable confab. 


I will be assigned in the registration booth, so I have the opportunity to meet all of the delegates. I will get to meet new friends in case. I just hope they are friendly bunch. But still with my charm I can easily win their hearts. I was not chosen for this task if my school does not believe that I can do this. So I will also be checking the guests at their assigned rooms. 


I was looking at the internet for some cool gifts. I was mesmerized by these fantastic personalized gift items. At first I was kind of hesitant because these items are intended for groomsmen gifts and bridesmaids’ gifts. But as I checked on the description of items, well was I glad that it can be a good gift for other occasions. Another problem though, which do you think is perfect for the conference, a simple personalized flask or an elaborate flask? 


For simple flasks, I am considering to buy a Diva Petite Stainless Steel 4oz Liquor Flask, Sunshine Yellow Leather Stainless Steel 6oz Hip Flask, Sienna Red Leather Stainless Steel 6oz Hip Flask for women and for men, a Bass Wide Mouth Silver Satin Stainless Steel 7oz Hip Flask, a Derek Premium Stainless Steel 6oz Hip Flask, and a Monroe Chrome Plate Stainless Steel 5oz Hip Flask. For elaborate female flasks, I am taking into account the following, a Star Silver Glitter Stainless Steel 4oz Hip Flask, an Annabella Light Pink Synthetic Leather Stainless Steel 6oz Hip Flask, or a Valor Pink Plaid Stainless Steel 8oz Hip Flask and for male, the Personalized Green Camouflage Flask, the Edinburgh 8oz Plaid Cloth Wrapped Stainless Steel Hip Flask, or the Elegance Stainless Steel 5oz Liquor Flask with Suede Wrap.              


How about you? Which do you think will be the best flask to give?