Extracts from a recent week of the "What's Hot on UK eBay" website:

Extract 1. HOT LISTINGS - Sporting Goods Top Level Category
Extract 2. HOT SEARCH WORDS - Pottery, Porcelain & Glass Top Level Category
Extract 3. MOST WATCHED LISTINGS - Clothes, Shoes & Accessories Top Level Category

Note these extracts show partial information from only 3 categories.
The "What's Hot on UK eBay" website includes all the main categories on eBay UK.