Buying Rolls (Or Other Inexpensive Bulk Lots) Of Coins While Traveling

They may not exist anymore, at least not in circulation.
Most (all?) countries have taken them out of circulation.
No buying power.
I don't think 1 and 2 cent euro coins exist in circulation.

They don't circulate in Finland, and the Dutch and Irish don't like them, but they are still widely used in Spain, Portugal, France, Belgium, Austria, Slovakia and Germany.

It helps to have an account with the same bank - I got some rolls of low value coins in Spain from the Banco de Santander. I have an account with them in the UK.

If you're going to the UK, you can get 1p and 2p coins pretty easily. If you go to any British seaside resort, you'll find penny arcades with machines that can change almost any amount of money into 2p coins. But we don't roll our coins here, we distribute them in small plastic bags.

I have sometimes got quantities of low value coins at face value from banks where I haven't had an account, but it's hit and miss. In Gibraltar recently, a nice bank clerk let me change an English £5 note into a mixture of local coins, but she said that only local account holders could get bags of coins.

Admittedly, I haven't been abroad for several years and I'm not going while CoVid-19 is raging but I've never experienced any problems in getting low denomination coins and I've not been an account-holder at any foreign bank.

Generally, banks won't issue coins that aren't in circulation.
Don't go at busy times and be prepared to wait.

Shops may be happy to give you change in the coins you want.

I told a German bank that I wanted to use their coins in a board game - they were furious and told me to get out.

Check export regulations, some countries forbid the departure of tourists holding local currency.

to the Community!

Your post was moved to the appropriate forum for the proper attention.

Aside from food poisoning and CoVid-19 issues aboard ship, I imagine you're aware of occasionally sketchy 'deals' (scams) to be had for travelers in the ports the ship will put into.

bsammon - If you don't have an account with the bank, I would recommend that you go to a branch of the country's national bank, the one that issues the coins. In the past I've got quantities of low value coins from the national banks in Peru, Paraguay and France. I had my best bargain in Paraguay in 1990 when I got a bag of 100 1-guarani coins for face value - about 10 US cents (for the whole bag) at the time! In the Eurozone, you might be given coins from any of the participating countries. In France (including overseas departments like Guadeloupe and Martinique) there are branches of the Banque de France in all main cities, and whilst they look quite forbidding with iron gates and push-button entry systems, I've found the staff very obliging, and, when I've gone in wearing shorts and a T-shirt, they've never asked why I want 100 5-centime coins! National banks are also handy for getting rid of obsolete banknotes and coins that you don't want to keep (if they are still exchangeable).